Simultaneous measurement of relative humidity and temperature using a microfiber coupler coated with molybdenum disulfide nanosheets

Yuting Bai; Yinping Miao; Hongmin Zhang; Jianquan Yao

doi:10.1364/OME.9.002846

Simultaneous measurement of relative humidity and temperature using a microfiber coupler coated with molybdenum disulfide nanosheets

Yuting Bai, Yinping Miao, Hongmin Zhang, and Jianquan Yao

Optical Materials Express
Vol. 9,
Issue 7,
pp. 2846-2858
(2019)
•https://doi.org/10.1364/OME.9.002846

Get Citation
Copy Citation Text
Yuting Bai, Yinping Miao, Hongmin Zhang, and Jianquan Yao, "Simultaneous measurement of relative humidity and temperature using a microfiber coupler coated with molybdenum disulfide nanosheets," Opt. Mater. Express 9, 2846-2858 (2019)

Export Citation
- BibTex
- Endnote (RIS)
- HTML
- Plain Text
Get PDF (1832 KB)
Set citation alerts
Save article

Related Topics
Table of Contents Category
- Fiber Materials
Optics & Photonics Topics
?

The topics in this list come from the OSA Optics and Photonics Topics applied to this article.

About this Article
History
- Original Manuscript: March 29, 2019
- Revised Manuscript: May 16, 2019
- Manuscript Accepted: May 16, 2019
- Published: June 12, 2019

Accessible

Open Access

Abstract

The simultaneous measurement of relative humidity (RH) and temperature with an optical fiber sensor is proposed based on a microfiber coupler (MFC) coated with a single layer of molybdenum disulfide (MoS₂) nanosheets. The MFC is fabricated using flame heating technology and has a waist diameter of approximately 6 µm and a waist length of approximately 3 mm. As the RH increases, the effective refractive index of MoS₂ varies as a result of electric charge transfer, the spectrum dip shifts toward longer wavelengths, and the transmission intensity of the spectrum decreases. As the temperature increases, the refractive index of the cladding of the fiber in the MFC waist region increases due to the thermo-optic effect, the spectrum dip shifts toward shorter wavelengths, and the transmission intensity of the spectrum decreases. The experimental results show that the RH sensitivities are 115.3 pm/%RH and -0.058 dB/%RH in the range of 54.0 - 93.2%RH. The temperature sensitivities are -104.8 pm/°C and -0.042 dB/°C in the range of 30 - 90 °C. The proposed sensor is expected to be used for simultaneous measurement of RH and temperature in the field of biochemical analysis.

Full Article | PDF Article

OSA Recommended Articles

Novel Knob-integrated fiber Bragg grating sensor with polyvinyl alcohol coating for simultaneous relative humidity and temperature measurement

Guofeng Yan, Yanhong Liang, El-Hang Lee, and Sailing He
Opt. Express 23(12) 15624-15634 (2015)

On-chip simultaneous sensing of humidity and temperature with a dual-polarization silicon microring resonator

Zuoqin Ding, Penghao Liu, Jingye Chen, Daoxin Dai, and Yaocheng Shi
Opt. Express 27(20) 28649-28659 (2019)

Molybdenum disulfide nanosheets deposited on polished optical fiber for humidity sensing and human breath monitoring

Dongquan Li, Huihui Lu, Wentao Qiu, Jiangli Dong, Heyuan Guan, Wenguo Zhu, Jianhui Yu, Yunhan Luo, Jun Zhang, and Zhe Chen
Opt. Express 25(23) 28407-28416 (2017)

References

View by:
Article Order
|
Year
|
Author
|
Publication

C. Chen, X. Wang, M. Li, Y. Fan, and R. Sun, “Humidity sensor based on reduced graphene oxide/lignosulfonate composite thin-film,” Sens. Actuators, B 255(2), 1569–1576 (2018).
[Crossref]
Z. Yuan, H. Tai, Z. Ye, C. Liu, G. Xie, X. Du, and Y. Jiang, “Novel highly sensitive QCM humidity sensor with low hysteresis based on graphene oxide (GO)/poly(ethyleneimine) layered film,” Sens. Actuators, B 234, 145–154 (2016).
[Crossref]
A. Kafy, A. Akther, M. I. R. Shishir, H. C. Kim, Y. Yun, and J. Kim, “Cellulose nanocrystal/graphene oxide composite film as humidity sensor,” Sens. Actuators, A 247, 221–226 (2016).
[Crossref]
Y. Zhao, Y. Peng, M. qing Chen, and R. J. Tong, “Humidity sensor based on unsymmetrical U-shaped microfiber with a polyvinyl alcohol overlay,” Sens. Actuators, B 263, 312–318 (2018).
[Crossref]
A. Leal-Junior, A. Frizera-Neto, C. Marques, and M. J. Pontes, “Measurement of temperature and relative humidity with polymer optical fiber sensors based on the induced stress-optic effect,” Sensors 18(3), 916 (2018).
[Crossref]
Y. Wang, C. Shen, W. Lou, and F. Shentu, “Fiber optic humidity sensor based on the graphene oxide/PVA composite film,” Opt. Commun. 372, 229–234 (2016).
[Crossref]
G. Berruti, M. Consales, M. Giordano, L. Sansone, P. Petagna, S. Buontempo, G. Breglio, and A. Cusano, “Radiation hard humidity sensors for high energy physics applications using polyimide-coated fiber Bragg gratings sensors,” Sens. Actuators, B 177, 94–102 (2013).
[Crossref]
B. N. Shivananju, S. Yamdagni, R. Fazuldeen, A. K. S. Kumar, S. P. Nithin, M. M. Varma, and S. Asokan, “Highly sensitive carbon nanotubes coated etched fiber Bragg grating sensor for humidity sensing,” IEEE Sens. J. 14(8), 2615–2619 (2014).
[Crossref]
T. Venugopalan, T. Sun, and K. T. V. Grattan, “Long period grating-based humidity sensor for potential structural health monitoring,” Sens. Actuators, A 148(1), 57–62 (2008).
[Crossref]
J. Ascorbe, J. M. Corres, I. R. Matias, and F. J. Arregui, “High sensitivity humidity sensor based on cladding-etched optical fiber and lossy mode resonances,” Sens. Actuators, B 233, 7–16 (2016).
[Crossref]
S. Wu, G. Yan, Z. Lian, X. Chen, B. Zhou, and S. He, “An open-cavity Fabry-Perot interferometer with PVA coating for simultaneous measurement of relative humidity and temperature,” Sens. Actuators, B 225, 50–56 (2016).
[Crossref]
C. Li, X. Yu, W. Zhou, Y. Cui, J. Liu, and S. Fan, “Ultrafast miniature fiber-tip Fabry–Perot humidity sensor with thin graphene oxide diaphragm,” Opt. Lett. 43(19), 4719 (2018).
[Crossref]
Y. Peng, Y. Zhao, M. Q. Chen, and F. Xia, “Research Advances in Microfiber Humidity Sensors,” Small 14(29), 1800524 (2018).
[Crossref]
N. Irawati, H. A. Rahman, H. Ahmad, and S. W. Harun, “A PMMA microfiber loop resonator based humidity sensor with ZnO nanorods coating,” Measurement 99, 128–133 (2017).
[Crossref]
H. A. Rahman, N. Irawati, T. N. R. Abdullah, and S. W. Harun, “PMMA microfiber coated with ZnO nanostructure for the measurement of relative humidity,” in IOP Conference Series: Materials Science and Engineering (2015).
G. Woyessa, K. Nielsen, A. Stefani, C. Markos, and O. Bang, “Temperature insensitive hysteresis free highly sensitive polymer optical fiber Bragg grating humidity sensor,” Opt. Express 24(2), 1206–1213 (2016).
[Crossref]
G. Woyessa, J. K. M. Pedersen, A. Fasano, K. Nielsen, C. Markos, H. K. Rasmussen, and O. Bang, “Zeonex-PMMA microstructured polymer optical FBGs for simultaneous humidity and temperature sensing,” Opt. Lett. 42(6), 1161–1164 (2017).
[Crossref]
A. Lokman, S. Nodehi, M. Batumalay, H. Arof, H. Ahmad, and S. W. Harun, “Optical fiber humidity sensor based on a tapered fiber with hydroxyethylcellulose/polyvinylidenefluoride composite,” Microw. Opt. Technol. Lett. 56(2), 380–382 (2014).
[Crossref]
B. Du, D. Yang, X. She, Y. Yuan, D. Mao, Y. Jiang, and F. Lu, “MoS2-based all-fiber humidity sensor for monitoring human breath with fast response and recovery,” Sens. Actuators, B 251, 180–184 (2017).
[Crossref]
D. Li, H. Lu, W. Qiu, J. Dong, H. Guan, W. Zhu, J. Yu, Y. Luo, J. Zhang, and Z. Chen, “Molybdenum disulfide nanosheets deposited on polished optical fiber for humidity sensing and human breath monitoring,” Opt. Express 25(23), 28407 (2017).
[Crossref]
K. Li, N. M. Y. Zhang, N. Zheng, T. Zhang, G. Liu, and L. Wei, “Spectral Characteristics and Ultrahigh Sensitivities Near the Dispersion Turning Point of Optical Microfiber Couplers,” J. Lightwave Technol. 36(12), 2409–2415 (2018).
[Crossref]
K. Li, T. Zhang, G. Liu, N. Zhang, M. Zhang, and L. Wei, “Ultrasensitive optical microfiber coupler based sensors operating near the turning point of effective group index difference,” Appl. Phys. Lett. 109(10), 101101 (2016).
[Crossref]
W. Lin, H. Zhang, B. Song, Y. Miao, B. Liu, D. Yan, and Y. Liu, “Magnetically controllable wavelength-division-multiplexing fiber coupler,” Opt. Express 23(9), 11123 (2015).
[Crossref]
J. Teng, J. Yang, C. Lv, T. Chen, J. Guo, J. Feng, and P. Wu, “Guidelines for design and fabrication of fused fiber coupler based wavelength division multiplexings,” Opt. Fiber Technol. 20(3), 239–244 (2014).
[Crossref]
F. P. Payne, C. D. Hussey, and M. S. Yataki, “Polarisation analysis of strongly fused and weakly fused tapered couplers,” Electron. Lett. 21(13), 561–563 (1985).
[Crossref]
F. P. Payne, C. D. Hussey, and M. S. Yataki, “Modelling fused single-mode-fibre couplers,” Electron. Lett. 21(11), 461–462 (1985).
[Crossref]
D. Liu, Q. Wu, C. Mei, J. Yuan, X. Xin, A. K. Mallik, F. Wei, W. Han, R. Kumar, C. Yu, S. Wan, X. He, B. Liu, G.-D. Peng, Y. Semenova, and G. Farrell, “Hollow Core Fiber Based Interferometer for High-Temperature (1000 °C) Measurement,” J. Lightwave Technol. 36(9), 1583–1590 (2018).
[Crossref]
M. Donarelli, S. Prezioso, F. Perrozzi, F. Bisti, M. Nardone, L. Giancaterini, C. Cantalini, and L. Ottaviano, “Response to NO2 and other gases of resistive chemically exfoliated MoS2-based gas sensors,” Sens. Actuators, B 207, 602–613 (2015).
[Crossref]
H. Li, S. H. Ahn, S. Park, L. Cai, J. Zhao, J. He, M. Zhou, J. Park, and X. Zheng, “Molybdenum disulfide catalyzed tungsten oxide for on-chip acetone sensing,” Appl. Phys. Lett. 109(13), 133103 (2016).
[Crossref]
Y. Wang, C. Shen, W. Lou, F. Shentu, C. Zhong, X. Dong, and L. Tong, “Fiber optic relative humidity sensor based on the tilted fiber Bragg grating coated with graphene oxide,” Appl. Phys. Lett. 109(3), 031107 (2016).
[Crossref]
L. Bo, P. Wang, Y. Semenova, and G. Farrell, “Optical microfiber coupler based humidity sensor with a polyethylene oxide coating,” Microw. Opt. Technol. Lett. 57(2), 457–460 (2015).
[Crossref]
L. Sun, Y. Semenova, Q. Wu, D. Liu, J. Yuan, X. Sang, B. Yan, K. Wang, C. Yu, and G. Farrell, “Investigation of humidity and temperature response of a silica gel coated microfiber coupler,” IEEE Photonics J. 8(6), 1–7 (2016).
[Crossref]
T. Ouyang, L. Lin, K. Xia, M. Jiang, Y. Lang, H. Guan, J. Yu, D. Li, G. Chen, W. Zhu, Y. Zhong, J. Tang, J. Dong, H. Lu, Y. Luo, J. Zhang, and Z. Chen, “Enhanced optical sensitivity of molybdenum diselenide (MoSe2) coated side polished fiber for humidity sensing,” Opt. Express 25(9), 9823–9833 (2017).
[Crossref]
Y. D. Chiu, C. W. Wu, and C. C. Chiang, “Tilted fiber Bragg grating sensor with graphene oxide coating for humidity sensing,” Sensors 17(9), 2129 (2017).
[Crossref]
Y. Huang, W. Zhu, Z. Li, G. Chen, L. Chen, J. Zhou, H. Lin, J. Guan, W. Fang, X. Liu, H. Dong, J. Tang, H. Guan, H. Lu, Y. Xiao, J. Zhang, H. Wang, Z. Chen, and J. Yu, “High-performance fibre-optic humidity sensor based on a side-polished fibre wavelength selectively coupled with graphene oxide film,” Sens. Actuators, B 255, 57–69 (2018).
[Crossref]
Y. Wang, Q. Huang, W. Zhu, and M. Yang, “Simultaneous Measurement of Temperature and Relative Humidity Based on FBG and FP Interferometer,” IEEE Photonics Technol. Lett. 30(9), 833–836 (2018).
[Crossref]
S. xi Jiao, Y. Zhao, and J. jin Gu, “Simultaneous measurement of humidity and temperature using a polyvinyl alcohol tapered fiber Bragg grating,” Instrum. Sci. Technol. 46(5), 463–474 (2018).
[Crossref]
A. Urrutia, J. Goicoechea, A. L. Ricchiuti, D. Barrera, S. Sales, and F. J. Arregui, “Simultaneous measurement of humidity and temperature based on a partially coated optical fiber long period grating,” Sens. Actuators, B 227, 135–141 (2016).
[Crossref]

2018 (10)

Y. Zhao, Y. Peng, M. qing Chen, and R. J. Tong, “Humidity sensor based on unsymmetrical U-shaped microfiber with a polyvinyl alcohol overlay,” Sens. Actuators, B 263, 312–318 (2018).
[Crossref]

A. Leal-Junior, A. Frizera-Neto, C. Marques, and M. J. Pontes, “Measurement of temperature and relative humidity with polymer optical fiber sensors based on the induced stress-optic effect,” Sensors 18(3), 916 (2018).
[Crossref]

C. Chen, X. Wang, M. Li, Y. Fan, and R. Sun, “Humidity sensor based on reduced graphene oxide/lignosulfonate composite thin-film,” Sens. Actuators, B 255(2), 1569–1576 (2018).
[Crossref]

Y. Peng, Y. Zhao, M. Q. Chen, and F. Xia, “Research Advances in Microfiber Humidity Sensors,” Small 14(29), 1800524 (2018).
[Crossref]

Y. Huang, W. Zhu, Z. Li, G. Chen, L. Chen, J. Zhou, H. Lin, J. Guan, W. Fang, X. Liu, H. Dong, J. Tang, H. Guan, H. Lu, Y. Xiao, J. Zhang, H. Wang, Z. Chen, and J. Yu, “High-performance fibre-optic humidity sensor based on a side-polished fibre wavelength selectively coupled with graphene oxide film,” Sens. Actuators, B 255, 57–69 (2018).
[Crossref]

Y. Wang, Q. Huang, W. Zhu, and M. Yang, “Simultaneous Measurement of Temperature and Relative Humidity Based on FBG and FP Interferometer,” IEEE Photonics Technol. Lett. 30(9), 833–836 (2018).
[Crossref]

S. xi Jiao, Y. Zhao, and J. jin Gu, “Simultaneous measurement of humidity and temperature using a polyvinyl alcohol tapered fiber Bragg grating,” Instrum. Sci. Technol. 46(5), 463–474 (2018).
[Crossref]

D. Liu, Q. Wu, C. Mei, J. Yuan, X. Xin, A. K. Mallik, F. Wei, W. Han, R. Kumar, C. Yu, S. Wan, X. He, B. Liu, G.-D. Peng, Y. Semenova, and G. Farrell, “Hollow Core Fiber Based Interferometer for High-Temperature (1000 °C) Measurement,” J. Lightwave Technol. 36(9), 1583–1590 (2018).
[Crossref]

K. Li, N. M. Y. Zhang, N. Zheng, T. Zhang, G. Liu, and L. Wei, “Spectral Characteristics and Ultrahigh Sensitivities Near the Dispersion Turning Point of Optical Microfiber Couplers,” J. Lightwave Technol. 36(12), 2409–2415 (2018).
[Crossref]

C. Li, X. Yu, W. Zhou, Y. Cui, J. Liu, and S. Fan, “Ultrafast miniature fiber-tip Fabry–Perot humidity sensor with thin graphene oxide diaphragm,” Opt. Lett. 43(19), 4719 (2018).
[Crossref]

2017 (6)

Y. D. Chiu, C. W. Wu, and C. C. Chiang, “Tilted fiber Bragg grating sensor with graphene oxide coating for humidity sensing,” Sensors 17(9), 2129 (2017).
[Crossref]

G. Woyessa, J. K. M. Pedersen, A. Fasano, K. Nielsen, C. Markos, H. K. Rasmussen, and O. Bang, “Zeonex-PMMA microstructured polymer optical FBGs for simultaneous humidity and temperature sensing,” Opt. Lett. 42(6), 1161–1164 (2017).
[Crossref]

T. Ouyang, L. Lin, K. Xia, M. Jiang, Y. Lang, H. Guan, J. Yu, D. Li, G. Chen, W. Zhu, Y. Zhong, J. Tang, J. Dong, H. Lu, Y. Luo, J. Zhang, and Z. Chen, “Enhanced optical sensitivity of molybdenum diselenide (MoSe2) coated side polished fiber for humidity sensing,” Opt. Express 25(9), 9823–9833 (2017).
[Crossref]

D. Li, H. Lu, W. Qiu, J. Dong, H. Guan, W. Zhu, J. Yu, Y. Luo, J. Zhang, and Z. Chen, “Molybdenum disulfide nanosheets deposited on polished optical fiber for humidity sensing and human breath monitoring,” Opt. Express 25(23), 28407 (2017).
[Crossref]

N. Irawati, H. A. Rahman, H. Ahmad, and S. W. Harun, “A PMMA microfiber loop resonator based humidity sensor with ZnO nanorods coating,” Measurement 99, 128–133 (2017).
[Crossref]

B. Du, D. Yang, X. She, Y. Yuan, D. Mao, Y. Jiang, and F. Lu, “MoS2-based all-fiber humidity sensor for monitoring human breath with fast response and recovery,” Sens. Actuators, B 251, 180–184 (2017).
[Crossref]

2016 (11)

J. Ascorbe, J. M. Corres, I. R. Matias, and F. J. Arregui, “High sensitivity humidity sensor based on cladding-etched optical fiber and lossy mode resonances,” Sens. Actuators, B 233, 7–16 (2016).
[Crossref]

S. Wu, G. Yan, Z. Lian, X. Chen, B. Zhou, and S. He, “An open-cavity Fabry-Perot interferometer with PVA coating for simultaneous measurement of relative humidity and temperature,” Sens. Actuators, B 225, 50–56 (2016).
[Crossref]

Z. Yuan, H. Tai, Z. Ye, C. Liu, G. Xie, X. Du, and Y. Jiang, “Novel highly sensitive QCM humidity sensor with low hysteresis based on graphene oxide (GO)/poly(ethyleneimine) layered film,” Sens. Actuators, B 234, 145–154 (2016).
[Crossref]

A. Kafy, A. Akther, M. I. R. Shishir, H. C. Kim, Y. Yun, and J. Kim, “Cellulose nanocrystal/graphene oxide composite film as humidity sensor,” Sens. Actuators, A 247, 221–226 (2016).
[Crossref]

Y. Wang, C. Shen, W. Lou, and F. Shentu, “Fiber optic humidity sensor based on the graphene oxide/PVA composite film,” Opt. Commun. 372, 229–234 (2016).
[Crossref]

G. Woyessa, K. Nielsen, A. Stefani, C. Markos, and O. Bang, “Temperature insensitive hysteresis free highly sensitive polymer optical fiber Bragg grating humidity sensor,” Opt. Express 24(2), 1206–1213 (2016).
[Crossref]

A. Urrutia, J. Goicoechea, A. L. Ricchiuti, D. Barrera, S. Sales, and F. J. Arregui, “Simultaneous measurement of humidity and temperature based on a partially coated optical fiber long period grating,” Sens. Actuators, B 227, 135–141 (2016).
[Crossref]

K. Li, T. Zhang, G. Liu, N. Zhang, M. Zhang, and L. Wei, “Ultrasensitive optical microfiber coupler based sensors operating near the turning point of effective group index difference,” Appl. Phys. Lett. 109(10), 101101 (2016).
[Crossref]

H. Li, S. H. Ahn, S. Park, L. Cai, J. Zhao, J. He, M. Zhou, J. Park, and X. Zheng, “Molybdenum disulfide catalyzed tungsten oxide for on-chip acetone sensing,” Appl. Phys. Lett. 109(13), 133103 (2016).
[Crossref]

Y. Wang, C. Shen, W. Lou, F. Shentu, C. Zhong, X. Dong, and L. Tong, “Fiber optic relative humidity sensor based on the tilted fiber Bragg grating coated with graphene oxide,” Appl. Phys. Lett. 109(3), 031107 (2016).
[Crossref]

L. Sun, Y. Semenova, Q. Wu, D. Liu, J. Yuan, X. Sang, B. Yan, K. Wang, C. Yu, and G. Farrell, “Investigation of humidity and temperature response of a silica gel coated microfiber coupler,” IEEE Photonics J. 8(6), 1–7 (2016).
[Crossref]

2015 (3)

M. Donarelli, S. Prezioso, F. Perrozzi, F. Bisti, M. Nardone, L. Giancaterini, C. Cantalini, and L. Ottaviano, “Response to NO2 and other gases of resistive chemically exfoliated MoS2-based gas sensors,” Sens. Actuators, B 207, 602–613 (2015).
[Crossref]

L. Bo, P. Wang, Y. Semenova, and G. Farrell, “Optical microfiber coupler based humidity sensor with a polyethylene oxide coating,” Microw. Opt. Technol. Lett. 57(2), 457–460 (2015).
[Crossref]

W. Lin, H. Zhang, B. Song, Y. Miao, B. Liu, D. Yan, and Y. Liu, “Magnetically controllable wavelength-division-multiplexing fiber coupler,” Opt. Express 23(9), 11123 (2015).
[Crossref]

2014 (3)

B. N. Shivananju, S. Yamdagni, R. Fazuldeen, A. K. S. Kumar, S. P. Nithin, M. M. Varma, and S. Asokan, “Highly sensitive carbon nanotubes coated etched fiber Bragg grating sensor for humidity sensing,” IEEE Sens. J. 14(8), 2615–2619 (2014).
[Crossref]

A. Lokman, S. Nodehi, M. Batumalay, H. Arof, H. Ahmad, and S. W. Harun, “Optical fiber humidity sensor based on a tapered fiber with hydroxyethylcellulose/polyvinylidenefluoride composite,” Microw. Opt. Technol. Lett. 56(2), 380–382 (2014).
[Crossref]

J. Teng, J. Yang, C. Lv, T. Chen, J. Guo, J. Feng, and P. Wu, “Guidelines for design and fabrication of fused fiber coupler based wavelength division multiplexings,” Opt. Fiber Technol. 20(3), 239–244 (2014).
[Crossref]

2013 (1)

G. Berruti, M. Consales, M. Giordano, L. Sansone, P. Petagna, S. Buontempo, G. Breglio, and A. Cusano, “Radiation hard humidity sensors for high energy physics applications using polyimide-coated fiber Bragg gratings sensors,” Sens. Actuators, B 177, 94–102 (2013).
[Crossref]

2008 (1)

T. Venugopalan, T. Sun, and K. T. V. Grattan, “Long period grating-based humidity sensor for potential structural health monitoring,” Sens. Actuators, A 148(1), 57–62 (2008).
[Crossref]

1985 (2)

F. P. Payne, C. D. Hussey, and M. S. Yataki, “Polarisation analysis of strongly fused and weakly fused tapered couplers,” Electron. Lett. 21(13), 561–563 (1985).
[Crossref]

F. P. Payne, C. D. Hussey, and M. S. Yataki, “Modelling fused single-mode-fibre couplers,” Electron. Lett. 21(11), 461–462 (1985).
[Crossref]

Abdullah, T. N. R.

H. A. Rahman, N. Irawati, T. N. R. Abdullah, and S. W. Harun, “PMMA microfiber coated with ZnO nanostructure for the measurement of relative humidity,” in IOP Conference Series: Materials Science and Engineering (2015).

Ahmad, H.

N. Irawati, H. A. Rahman, H. Ahmad, and S. W. Harun, “A PMMA microfiber loop resonator based humidity sensor with ZnO nanorods coating,” Measurement 99, 128–133 (2017).
[Crossref]

Ahn, S. H.

Akther, A.

A. Kafy, A. Akther, M. I. R. Shishir, H. C. Kim, Y. Yun, and J. Kim, “Cellulose nanocrystal/graphene oxide composite film as humidity sensor,” Sens. Actuators, A 247, 221–226 (2016).
[Crossref]

Arof, H.

Arregui, F. J.

Ascorbe, J.

Asokan, S.

Bang, O.

Barrera, D.

Batumalay, M.

Berruti, G.

Bisti, F.

Bo, L.

L. Bo, P. Wang, Y. Semenova, and G. Farrell, “Optical microfiber coupler based humidity sensor with a polyethylene oxide coating,” Microw. Opt. Technol. Lett. 57(2), 457–460 (2015).
[Crossref]

Breglio, G.

Buontempo, S.

Cai, L.

Cantalini, C.

Chen, C.

C. Chen, X. Wang, M. Li, Y. Fan, and R. Sun, “Humidity sensor based on reduced graphene oxide/lignosulfonate composite thin-film,” Sens. Actuators, B 255(2), 1569–1576 (2018).
[Crossref]

Chen, G.

Chen, L.

Chen, M. Q.

Y. Peng, Y. Zhao, M. Q. Chen, and F. Xia, “Research Advances in Microfiber Humidity Sensors,” Small 14(29), 1800524 (2018).
[Crossref]

Chen, T.

Chen, X.

Chen, Z.

Chiang, C. C.

Y. D. Chiu, C. W. Wu, and C. C. Chiang, “Tilted fiber Bragg grating sensor with graphene oxide coating for humidity sensing,” Sensors 17(9), 2129 (2017).
[Crossref]

Chiu, Y. D.

Y. D. Chiu, C. W. Wu, and C. C. Chiang, “Tilted fiber Bragg grating sensor with graphene oxide coating for humidity sensing,” Sensors 17(9), 2129 (2017).
[Crossref]

Consales, M.

Corres, J. M.

Cui, Y.

C. Li, X. Yu, W. Zhou, Y. Cui, J. Liu, and S. Fan, “Ultrafast miniature fiber-tip Fabry–Perot humidity sensor with thin graphene oxide diaphragm,” Opt. Lett. 43(19), 4719 (2018).
[Crossref]

Cusano, A.

Donarelli, M.

Dong, H.

Dong, J.

Dong, X.

Du, B.

Du, X.

Fan, S.

C. Li, X. Yu, W. Zhou, Y. Cui, J. Liu, and S. Fan, “Ultrafast miniature fiber-tip Fabry–Perot humidity sensor with thin graphene oxide diaphragm,” Opt. Lett. 43(19), 4719 (2018).
[Crossref]

Fan, Y.

C. Chen, X. Wang, M. Li, Y. Fan, and R. Sun, “Humidity sensor based on reduced graphene oxide/lignosulfonate composite thin-film,” Sens. Actuators, B 255(2), 1569–1576 (2018).
[Crossref]

Fang, W.

Farrell, G.

L. Bo, P. Wang, Y. Semenova, and G. Farrell, “Optical microfiber coupler based humidity sensor with a polyethylene oxide coating,” Microw. Opt. Technol. Lett. 57(2), 457–460 (2015).
[Crossref]

Fasano, A.

Fazuldeen, R.

Feng, J.

Frizera-Neto, A.

Giancaterini, L.

Giordano, M.

Goicoechea, J.

Grattan, K. T. V.

T. Venugopalan, T. Sun, and K. T. V. Grattan, “Long period grating-based humidity sensor for potential structural health monitoring,” Sens. Actuators, A 148(1), 57–62 (2008).
[Crossref]

Guan, H.

Guan, J.

Guo, J.

Han, W.

Harun, S. W.

N. Irawati, H. A. Rahman, H. Ahmad, and S. W. Harun, “A PMMA microfiber loop resonator based humidity sensor with ZnO nanorods coating,” Measurement 99, 128–133 (2017).
[Crossref]

He, J.

He, S.

He, X.

Huang, Q.

Huang, Y.

Hussey, C. D.

F. P. Payne, C. D. Hussey, and M. S. Yataki, “Polarisation analysis of strongly fused and weakly fused tapered couplers,” Electron. Lett. 21(13), 561–563 (1985).
[Crossref]

F. P. Payne, C. D. Hussey, and M. S. Yataki, “Modelling fused single-mode-fibre couplers,” Electron. Lett. 21(11), 461–462 (1985).
[Crossref]

Irawati, N.

N. Irawati, H. A. Rahman, H. Ahmad, and S. W. Harun, “A PMMA microfiber loop resonator based humidity sensor with ZnO nanorods coating,” Measurement 99, 128–133 (2017).
[Crossref]

Jiang, M.

Jiang, Y.

jin Gu, J.

Kafy, A.

A. Kafy, A. Akther, M. I. R. Shishir, H. C. Kim, Y. Yun, and J. Kim, “Cellulose nanocrystal/graphene oxide composite film as humidity sensor,” Sens. Actuators, A 247, 221–226 (2016).
[Crossref]

Kim, H. C.

A. Kafy, A. Akther, M. I. R. Shishir, H. C. Kim, Y. Yun, and J. Kim, “Cellulose nanocrystal/graphene oxide composite film as humidity sensor,” Sens. Actuators, A 247, 221–226 (2016).
[Crossref]

Kim, J.

A. Kafy, A. Akther, M. I. R. Shishir, H. C. Kim, Y. Yun, and J. Kim, “Cellulose nanocrystal/graphene oxide composite film as humidity sensor,” Sens. Actuators, A 247, 221–226 (2016).
[Crossref]

Kumar, A. K. S.

Kumar, R.

Lang, Y.

Leal-Junior, A.

Li, C.

C. Li, X. Yu, W. Zhou, Y. Cui, J. Liu, and S. Fan, “Ultrafast miniature fiber-tip Fabry–Perot humidity sensor with thin graphene oxide diaphragm,” Opt. Lett. 43(19), 4719 (2018).
[Crossref]

Li, D.

Li, H.

Li, K.

Li, M.

C. Chen, X. Wang, M. Li, Y. Fan, and R. Sun, “Humidity sensor based on reduced graphene oxide/lignosulfonate composite thin-film,” Sens. Actuators, B 255(2), 1569–1576 (2018).
[Crossref]

Li, Z.

Lian, Z.

Lin, H.

Lin, L.

Lin, W.

W. Lin, H. Zhang, B. Song, Y. Miao, B. Liu, D. Yan, and Y. Liu, “Magnetically controllable wavelength-division-multiplexing fiber coupler,” Opt. Express 23(9), 11123 (2015).
[Crossref]

Liu, B.

W. Lin, H. Zhang, B. Song, Y. Miao, B. Liu, D. Yan, and Y. Liu, “Magnetically controllable wavelength-division-multiplexing fiber coupler,” Opt. Express 23(9), 11123 (2015).
[Crossref]

Liu, C.

Liu, D.

Liu, G.

Liu, J.

C. Li, X. Yu, W. Zhou, Y. Cui, J. Liu, and S. Fan, “Ultrafast miniature fiber-tip Fabry–Perot humidity sensor with thin graphene oxide diaphragm,” Opt. Lett. 43(19), 4719 (2018).
[Crossref]

Liu, X.

Liu, Y.

W. Lin, H. Zhang, B. Song, Y. Miao, B. Liu, D. Yan, and Y. Liu, “Magnetically controllable wavelength-division-multiplexing fiber coupler,” Opt. Express 23(9), 11123 (2015).
[Crossref]

Lokman, A.

Lou, W.

Y. Wang, C. Shen, W. Lou, and F. Shentu, “Fiber optic humidity sensor based on the graphene oxide/PVA composite film,” Opt. Commun. 372, 229–234 (2016).
[Crossref]

Lu, F.

Lu, H.

Luo, Y.

Lv, C.

Mallik, A. K.

Mao, D.

Markos, C.

Marques, C.

Matias, I. R.

Mei, C.

Miao, Y.

W. Lin, H. Zhang, B. Song, Y. Miao, B. Liu, D. Yan, and Y. Liu, “Magnetically controllable wavelength-division-multiplexing fiber coupler,” Opt. Express 23(9), 11123 (2015).
[Crossref]

Nardone, M.

Nielsen, K.

Nithin, S. P.

Nodehi, S.

Ottaviano, L.

Ouyang, T.

Park, J.

Park, S.

Payne, F. P.

F. P. Payne, C. D. Hussey, and M. S. Yataki, “Polarisation analysis of strongly fused and weakly fused tapered couplers,” Electron. Lett. 21(13), 561–563 (1985).
[Crossref]

F. P. Payne, C. D. Hussey, and M. S. Yataki, “Modelling fused single-mode-fibre couplers,” Electron. Lett. 21(11), 461–462 (1985).
[Crossref]

Pedersen, J. K. M.

Peng, G.-D.

Peng, Y.

Y. Peng, Y. Zhao, M. Q. Chen, and F. Xia, “Research Advances in Microfiber Humidity Sensors,” Small 14(29), 1800524 (2018).
[Crossref]

Y. Zhao, Y. Peng, M. qing Chen, and R. J. Tong, “Humidity sensor based on unsymmetrical U-shaped microfiber with a polyvinyl alcohol overlay,” Sens. Actuators, B 263, 312–318 (2018).
[Crossref]

Perrozzi, F.

Petagna, P.

Pontes, M. J.

Prezioso, S.

qing Chen, M.

Y. Zhao, Y. Peng, M. qing Chen, and R. J. Tong, “Humidity sensor based on unsymmetrical U-shaped microfiber with a polyvinyl alcohol overlay,” Sens. Actuators, B 263, 312–318 (2018).
[Crossref]

Qiu, W.

Rahman, H. A.

N. Irawati, H. A. Rahman, H. Ahmad, and S. W. Harun, “A PMMA microfiber loop resonator based humidity sensor with ZnO nanorods coating,” Measurement 99, 128–133 (2017).
[Crossref]

Rasmussen, H. K.

Ricchiuti, A. L.

Sales, S.

Sang, X.

Sansone, L.

Semenova, Y.

L. Bo, P. Wang, Y. Semenova, and G. Farrell, “Optical microfiber coupler based humidity sensor with a polyethylene oxide coating,” Microw. Opt. Technol. Lett. 57(2), 457–460 (2015).
[Crossref]

She, X.

Shen, C.

Y. Wang, C. Shen, W. Lou, and F. Shentu, “Fiber optic humidity sensor based on the graphene oxide/PVA composite film,” Opt. Commun. 372, 229–234 (2016).
[Crossref]

Shentu, F.

Y. Wang, C. Shen, W. Lou, and F. Shentu, “Fiber optic humidity sensor based on the graphene oxide/PVA composite film,” Opt. Commun. 372, 229–234 (2016).
[Crossref]

Shishir, M. I. R.

A. Kafy, A. Akther, M. I. R. Shishir, H. C. Kim, Y. Yun, and J. Kim, “Cellulose nanocrystal/graphene oxide composite film as humidity sensor,” Sens. Actuators, A 247, 221–226 (2016).
[Crossref]

Shivananju, B. N.

Song, B.

W. Lin, H. Zhang, B. Song, Y. Miao, B. Liu, D. Yan, and Y. Liu, “Magnetically controllable wavelength-division-multiplexing fiber coupler,” Opt. Express 23(9), 11123 (2015).
[Crossref]

Stefani, A.

Sun, L.

Sun, R.

C. Chen, X. Wang, M. Li, Y. Fan, and R. Sun, “Humidity sensor based on reduced graphene oxide/lignosulfonate composite thin-film,” Sens. Actuators, B 255(2), 1569–1576 (2018).
[Crossref]

Sun, T.

T. Venugopalan, T. Sun, and K. T. V. Grattan, “Long period grating-based humidity sensor for potential structural health monitoring,” Sens. Actuators, A 148(1), 57–62 (2008).
[Crossref]

Tai, H.

Tang, J.

Teng, J.

Tong, L.

Tong, R. J.

Y. Zhao, Y. Peng, M. qing Chen, and R. J. Tong, “Humidity sensor based on unsymmetrical U-shaped microfiber with a polyvinyl alcohol overlay,” Sens. Actuators, B 263, 312–318 (2018).
[Crossref]

Urrutia, A.

Varma, M. M.

Venugopalan, T.

T. Venugopalan, T. Sun, and K. T. V. Grattan, “Long period grating-based humidity sensor for potential structural health monitoring,” Sens. Actuators, A 148(1), 57–62 (2008).
[Crossref]

Wan, S.

Wang, H.

Wang, K.

Wang, P.

L. Bo, P. Wang, Y. Semenova, and G. Farrell, “Optical microfiber coupler based humidity sensor with a polyethylene oxide coating,” Microw. Opt. Technol. Lett. 57(2), 457–460 (2015).
[Crossref]

Wang, X.

C. Chen, X. Wang, M. Li, Y. Fan, and R. Sun, “Humidity sensor based on reduced graphene oxide/lignosulfonate composite thin-film,” Sens. Actuators, B 255(2), 1569–1576 (2018).
[Crossref]

Wang, Y.

Y. Wang, C. Shen, W. Lou, and F. Shentu, “Fiber optic humidity sensor based on the graphene oxide/PVA composite film,” Opt. Commun. 372, 229–234 (2016).
[Crossref]

Wei, F.

Wei, L.

Woyessa, G.

Wu, C. W.

Y. D. Chiu, C. W. Wu, and C. C. Chiang, “Tilted fiber Bragg grating sensor with graphene oxide coating for humidity sensing,” Sensors 17(9), 2129 (2017).
[Crossref]

Wu, P.

Wu, Q.

Wu, S.

xi Jiao, S.

Xia, F.

Y. Peng, Y. Zhao, M. Q. Chen, and F. Xia, “Research Advances in Microfiber Humidity Sensors,” Small 14(29), 1800524 (2018).
[Crossref]

Xia, K.

Xiao, Y.

Xie, G.

Xin, X.

Yamdagni, S.

Yan, B.

Yan, D.

W. Lin, H. Zhang, B. Song, Y. Miao, B. Liu, D. Yan, and Y. Liu, “Magnetically controllable wavelength-division-multiplexing fiber coupler,” Opt. Express 23(9), 11123 (2015).
[Crossref]

Yan, G.

Yang, D.

Yang, J.

Yang, M.

Yataki, M. S.

F. P. Payne, C. D. Hussey, and M. S. Yataki, “Polarisation analysis of strongly fused and weakly fused tapered couplers,” Electron. Lett. 21(13), 561–563 (1985).
[Crossref]

F. P. Payne, C. D. Hussey, and M. S. Yataki, “Modelling fused single-mode-fibre couplers,” Electron. Lett. 21(11), 461–462 (1985).
[Crossref]

Ye, Z.

Yu, C.

Yu, J.

Yu, X.

C. Li, X. Yu, W. Zhou, Y. Cui, J. Liu, and S. Fan, “Ultrafast miniature fiber-tip Fabry–Perot humidity sensor with thin graphene oxide diaphragm,” Opt. Lett. 43(19), 4719 (2018).
[Crossref]

Yuan, J.

Yuan, Y.

Yuan, Z.

Yun, Y.

A. Kafy, A. Akther, M. I. R. Shishir, H. C. Kim, Y. Yun, and J. Kim, “Cellulose nanocrystal/graphene oxide composite film as humidity sensor,” Sens. Actuators, A 247, 221–226 (2016).
[Crossref]

Zhang, H.

W. Lin, H. Zhang, B. Song, Y. Miao, B. Liu, D. Yan, and Y. Liu, “Magnetically controllable wavelength-division-multiplexing fiber coupler,” Opt. Express 23(9), 11123 (2015).
[Crossref]

Zhang, J.

Zhang, M.

Zhang, N.

Zhang, N. M. Y.

Zhang, T.

Zhao, J.

Zhao, Y.

Y. Zhao, Y. Peng, M. qing Chen, and R. J. Tong, “Humidity sensor based on unsymmetrical U-shaped microfiber with a polyvinyl alcohol overlay,” Sens. Actuators, B 263, 312–318 (2018).
[Crossref]

Y. Peng, Y. Zhao, M. Q. Chen, and F. Xia, “Research Advances in Microfiber Humidity Sensors,” Small 14(29), 1800524 (2018).
[Crossref]

Zheng, N.

Zheng, X.

Zhong, C.

Zhong, Y.

Zhou, B.

Zhou, J.

Zhou, M.

Zhou, W.

C. Li, X. Yu, W. Zhou, Y. Cui, J. Liu, and S. Fan, “Ultrafast miniature fiber-tip Fabry–Perot humidity sensor with thin graphene oxide diaphragm,” Opt. Lett. 43(19), 4719 (2018).
[Crossref]

Zhu, W.

Appl. Phys. Lett. (3)

Electron. Lett. (2)

F. P. Payne, C. D. Hussey, and M. S. Yataki, “Polarisation analysis of strongly fused and weakly fused tapered couplers,” Electron. Lett. 21(13), 561–563 (1985).
[Crossref]

F. P. Payne, C. D. Hussey, and M. S. Yataki, “Modelling fused single-mode-fibre couplers,” Electron. Lett. 21(11), 461–462 (1985).
[Crossref]

IEEE Photonics J. (1)

IEEE Photonics Technol. Lett. (1)

IEEE Sens. J. (1)

Instrum. Sci. Technol. (1)

J. Lightwave Technol. (2)

Measurement (1)

N. Irawati, H. A. Rahman, H. Ahmad, and S. W. Harun, “A PMMA microfiber loop resonator based humidity sensor with ZnO nanorods coating,” Measurement 99, 128–133 (2017).
[Crossref]

Microw. Opt. Technol. Lett. (2)

L. Bo, P. Wang, Y. Semenova, and G. Farrell, “Optical microfiber coupler based humidity sensor with a polyethylene oxide coating,” Microw. Opt. Technol. Lett. 57(2), 457–460 (2015).
[Crossref]

Opt. Commun. (1)

Y. Wang, C. Shen, W. Lou, and F. Shentu, “Fiber optic humidity sensor based on the graphene oxide/PVA composite film,” Opt. Commun. 372, 229–234 (2016).
[Crossref]

Opt. Express (4)

W. Lin, H. Zhang, B. Song, Y. Miao, B. Liu, D. Yan, and Y. Liu, “Magnetically controllable wavelength-division-multiplexing fiber coupler,” Opt. Express 23(9), 11123 (2015).
[Crossref]

Opt. Fiber Technol. (1)

Opt. Lett. (2)

C. Li, X. Yu, W. Zhou, Y. Cui, J. Liu, and S. Fan, “Ultrafast miniature fiber-tip Fabry–Perot humidity sensor with thin graphene oxide diaphragm,” Opt. Lett. 43(19), 4719 (2018).
[Crossref]

Sens. Actuators, A (2)

T. Venugopalan, T. Sun, and K. T. V. Grattan, “Long period grating-based humidity sensor for potential structural health monitoring,” Sens. Actuators, A 148(1), 57–62 (2008).
[Crossref]

A. Kafy, A. Akther, M. I. R. Shishir, H. C. Kim, Y. Yun, and J. Kim, “Cellulose nanocrystal/graphene oxide composite film as humidity sensor,” Sens. Actuators, A 247, 221–226 (2016).
[Crossref]

Sens. Actuators, B (10)

Y. Zhao, Y. Peng, M. qing Chen, and R. J. Tong, “Humidity sensor based on unsymmetrical U-shaped microfiber with a polyvinyl alcohol overlay,” Sens. Actuators, B 263, 312–318 (2018).
[Crossref]

C. Chen, X. Wang, M. Li, Y. Fan, and R. Sun, “Humidity sensor based on reduced graphene oxide/lignosulfonate composite thin-film,” Sens. Actuators, B 255(2), 1569–1576 (2018).
[Crossref]

Sensors (2)

Y. D. Chiu, C. W. Wu, and C. C. Chiang, “Tilted fiber Bragg grating sensor with graphene oxide coating for humidity sensing,” Sensors 17(9), 2129 (2017).
[Crossref]

Small (1)

Y. Peng, Y. Zhao, M. Q. Chen, and F. Xia, “Research Advances in Microfiber Humidity Sensors,” Small 14(29), 1800524 (2018).
[Crossref]

Other (1)

Cited By

OSA participates in Crossref's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.

Click here to see a list of articles that cite this paper

Fig. 1. Schematic diagram of the microfiber coupler.

Download Full Size | PPT Slide | PDF

Fig. 2. Simulated transmission of MFC for different ambient refractive index values of

${n_3}$

Download Full Size | PPT Slide | PDF

Fig. 3. Simulated amplitude distribution of light propagating in the microfiber coupler for different ambient refractive index levels of (a) 1.0, (b) 1.358, and (c) 1.4182.

Download Full Size | PPT Slide | PDF

Fig. 4. Simulated transmission of MFC for different refractive index values of the fiber cladding of

${n_2}$

Download Full Size | PPT Slide | PDF

Fig. 5. Optical microscope graph of a microfiber coupler.

Download Full Size | PPT Slide | PDF

Fig. 6. Schematic diagram of the experimental setup of the proposed humidity sensor.

Download Full Size | PPT Slide | PDF

Fig. 7. Transmission characteristics of the microfiber coupler coated with a single layer of MoS₂ nanosheets at different RHs.

Download Full Size | PPT Slide | PDF

Fig. 8. Transmission spectral evolution of the dip at different RHs.

Download Full Size | PPT Slide | PDF

Fig. 9. Wavelength and transmission intensity response to a change in RH.

Download Full Size | PPT Slide | PDF

Fig. 10. Transmission spectral evolution of the dip at different temperatures.

Download Full Size | PPT Slide | PDF

Fig. 11. Wavelength and transmission intensity response to a change in temperature.

Download Full Size | PPT Slide | PDF

Tables (3)

Table 1. RH sensors based on the coupler structure.

View Table | View all tables in this article

Table 2. Comparison of RH sensors based on two-dimensional materials.

View Table | View all tables in this article

Table 3. Comparison of fiber-optic sensors for simultaneous measurement of RH and temperature.

View Table | View all tables in this article

Equations (10)

Equations on this page are rendered with MathJax. Learn more.

{\begin{cases} P_{C} (λ) = P_{1} \cos^{2} φ (λ, n_{2}, n_{3}) \\ P_{D} (λ) = P_{1} \sin^{2} φ (λ, n_{2}, n_{3}) \end{cases}

φ (λ, n_{2}, n_{3}) = \int_{S C} C_{1} (λ, n_{2}, n_{3}, z) d z + \int_{W C} C_{2} (λ, n_{2}, n_{3}, z) d z = φ_{S C} (λ, n_{2}, n_{3}) + φ_{W C} (λ, n_{2}, n_{3})

{\begin{cases} C_{1} = \frac{3 π λ}{32 n_{2} r^{2}} \cdot \frac{1}{{(1 + 1 / V)}^{2}} \\ C_{2} = \frac{2}{r} \cdot {(\frac{Δ}{2 π D})}^{1 / 2} \cdot \frac{U_{\infty}}{V^{5 / 2} e^{V (2 D - 2)}} \end{cases}

S_{n} = \frac{\partial λ}{\partial n_{3}} = - \frac{\frac{\partial φ (λ, n_{2}, n_{3})}{\partial n_{3}}}{\frac{\partial φ (λ, n_{2}, n_{3})}{\partial λ}} = - \frac{\frac{\partial φ_{S C}}{\partial n_{3}} + \frac{\partial φ_{W C}}{\partial n_{3}}}{\frac{\partial φ_{S C}}{\partial λ} + \frac{\partial φ_{W C}}{\partial λ}}

S_{R H} = \frac{\partial λ}{\partial R H} = \frac{\partial λ}{\partial n_{3}} \cdot \frac{d n_{3}}{d R H} = - \frac{\frac{\partial φ (λ, n_{2}, n_{3})}{\partial n_{3}}}{\frac{\partial φ (λ, n_{2}, n_{3})}{\partial λ}} \cdot \frac{d n_{3}}{d R H} = - \frac{\frac{\partial φ_{S C}}{\partial n_{3}} + \frac{\partial φ_{W C}}{\partial n_{3}}}{\frac{\partial φ_{S C}}{\partial λ} + \frac{\partial φ_{W C}}{\partial λ}} \cdot \frac{d n_{3}}{d R H}

{\begin{cases} n_{2 T} = n_{20} + ξ \cdot n_{20} \cdot Δ T \\ r_{T} = r_{0} + α \cdot r_{0} \cdot Δ T \\ L_{T} = L_{0} + α \cdot L_{0} \cdot Δ T \end{cases}

S_{T} = \frac{\partial λ}{\partial T} = \frac{\partial λ}{\partial n_{2}} \cdot \frac{d n_{2}}{d T} = - \frac{\frac{\partial φ (λ, n_{2}, n_{3})}{\partial n_{2}}}{\frac{\partial φ (λ, n_{2}, n_{3})}{\partial λ}} \cdot \frac{d n_{2}}{d T} = - \frac{\frac{\partial φ_{S C}}{\partial n_{2}} + \frac{\partial φ_{W C}}{\partial n_{2}}}{\frac{\partial φ_{S C}}{\partial λ} + \frac{\partial φ_{W C}}{\partial λ}} \cdot \frac{d n_{2}}{d T}

[\begin{array}{l} Δ λ \\ Δ t \end{array}] = [\begin{array}{cc} K_{λ, R H} & K_{λ, T} \\ K_{t, R H} & K_{t, T} \end{array}] \cdot [\begin{array}{l} Δ R H \\ Δ T \end{array}]

[\begin{array}{l} Δ R H \\ Δ T \end{array}] = {[\begin{array}{cc} K_{λ, R H} & K_{λ, T} \\ K_{t, R H} & K_{t, T} \end{array}]}^{- 1} [\begin{array}{l} Δ λ \\ Δ t \end{array}] = \frac{1}{K_{λ, R H} K_{t, T} - K_{λ, T} K_{t, R H}} [\begin{array}{cc} K_{t, T} & - K_{λ, T} \\ - K_{t, R H} & K_{λ, R H} \end{array}] \cdot [\begin{array}{l} Δ λ \\ Δ t \end{array}]

[\begin{array}{l} Δ R H \\ Δ T \end{array}] = \frac{1}{- 10.921} [\begin{array}{cc} - 0.042 & 104.8 \\ 0.058 & 115.3 \end{array}] [\begin{array}{l} Δ λ \\ Δ t \end{array}]

Reference source	Sensitive material	RH range	Sensitivity
[31]	Polyethylene oxide	20-70%RH	-5 pm/%RH
[31]	Polyethylene oxide	70-85%RH	2.74 nm/%RH
[32]	Silica gel	70-86%RH	1.6 nm/%RH
This work	MoS₂ nanosheets	54-93.2%RH	115.3 pm/%RH

Reference source	Configuration	RH range	Average sensitivity
[33]	Molybdenum diselenide (MoSe₂) coated side polished fiber (SPF)	32-73%RH	0.321 dB/%RH
[34]	Graphene oxide coated tilted fiber Bragg grating (TFBG)	20-80%RH	-10 pm/%RH
[35]	Graphene oxide coated SPF	32-85%RH	145 pm/%RH
[35]	Graphene oxide coated SPF	85-97.6%RH	915 pm/%RH
[20]	MoS₂ coated SPF	40-85%RH	0.3 dB/%RH
This work	MoS₂ coated MFC	54-93.2%RH	115.3 pm/%RH

Reference source	Configuration	RH range	RH sensitivity	Temperature range	Temperature sensitivity
[36]	Polyimide and FBG, FP interferometer	20-90%RH	22.07 pm/%RH	15-60 °C	9.98 pm/°C
[37]	Polyvinyl alcohol tapered FBG	50-66%RH	0.33 µW/%RH	38-48 °C	10.9 pm/°C
[38]	PAH-PAA and LPG	20-80%RH	−63.23 pm/%RH	25-85 °C	-410.66 pm/°C
This work	MoS₂ coated MFC	54-93.2%RH	115.3 pm/%RH	30-90 °C	-104.8 pm/°C

Reference source	Sensitive material	RH range	Sensitivity
[31]	Polyethylene oxide	20-70%RH	-5 pm/%RH
[31]	Polyethylene oxide	70-85%RH	2.74 nm/%RH
[32]	Silica gel	70-86%RH	1.6 nm/%RH
This work	MoS₂ nanosheets	54-93.2%RH	115.3 pm/%RH

Reference source	Configuration	RH range	Average sensitivity
[33]	Molybdenum diselenide (MoSe₂) coated side polished fiber (SPF)	32-73%RH	0.321 dB/%RH
[34]	Graphene oxide coated tilted fiber Bragg grating (TFBG)	20-80%RH	-10 pm/%RH
[35]	Graphene oxide coated SPF	32-85%RH	145 pm/%RH
[35]	Graphene oxide coated SPF	85-97.6%RH	915 pm/%RH
[20]	MoS₂ coated SPF	40-85%RH	0.3 dB/%RH
This work	MoS₂ coated MFC	54-93.2%RH	115.3 pm/%RH