Abstract

An optical fiber sensor for simultaneous measurement of humidity and temperature is proposed and investigated. The sensor is composed of a pokal taper and a peanut taper spliced at both ends of a single-mode fiber, respectively. In the experiment, the variations of the dip wavelength are used to measure the parameter sensing characteristics. The sensing area is coated with a concentration of 1 mg/ml graphene dispersion by using the optical driven deposition method. Experimental results show that the sensor has a good linear relationship with temperature and humidity. When the humidity measurement range is $ 30\% {\rm{RH}} \sim 70\% {\rm{RH}} $, the sensitivities are 0.059 nm/%RH and 0.133 nm/%RH, respectively. When the temperature measurement range is $ {0^ \circ }{\rm C} \sim {40^ \circ }{\rm C} $, the sensitivities are 0.254 nm/°C and 0.269 nm/°C, respectively. This sensor has the advantages of small size, low cost, and high response.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Research on simultaneous measurement of temperature and refractive index based on thin-core fiber and pokal taper

Yimei Zhong, Juan Qin, Zhengrong Tong, Weihua Zhang, Wei Huang, and Wenlin Gao
Appl. Opt. 58(8) 1955-1960 (2019)

Sensitivity-enhanced humidity sensor based on helix structure-assisted Mach-Zehnder interference

Yin Liu, Ai Zhou, and Libo Yuan
Opt. Express 27(24) 35609-35620 (2019)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (4)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription