Abstract

An optical fiber sensor based on a Mach–Zehnder interferometer with hybrid structure optical fiber for simultaneous measurement of refractive index (RI), strain, and temperature is proposed and demonstrated. The proposed structure is a hybrid structure based on a non-core fiber combined with few-mode fiber. The possibility of simultaneously measuring RI, strain, and temperature relies on the different sensitivity responses of three resonance peaks in the transmission spectrum. Thus, simultaneous measurement of RI, strain, and temperature is realized by calculating the wavelength shift of the three resonance peaks. The experimental results show that the sensitivities of RI are 22.9 pm/RIU, 24.6 pm/RIU, and 97 pm/RIU when RI changes from 1.3707 to 1.39809, respectively. The sensitivities of strain are $ - {3.5}\,\, \text{pm}/ \unicode{x00B5}\unicode{x03B5}$, $ - {1.9}\,\, \text{pm}/ \unicode{x00B5} \unicode{x03B5}$, and $ - {4.1}\,\, \text{pm}/ \unicode{x00B5} \unicode{x03B5}$ in the range from 0 to 1400 pm/µ$\unicode{x03B5}$. The sensitivities of temperature ranging from 35°C to 55°C are 162 pm/°C, 194 pm/°C, and 162 pm/°C, respectively. The proposed sensor, with advantages of simple configuration, compact structure, and high sensitivity, exhibits great potential in fields of multi-parameter measurement.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Simultaneous measurement of refractive index and temperature with high sensitivity based on a multipath fiber Mach–Zehnder interferometer

Yajun Jiang, Tao Wang, Chi Liu, Dingyi Feng, Biqiang Jiang, Dexing Yang, and Jianlin Zhao
Appl. Opt. 58(15) 4085-4090 (2019)

Simultaneous measurement of strain and temperature by employing fiber Mach-Zehnder interferometer

Jiangtao Zhou, Changrui Liao, Yiping Wang, Guolu Yin, Xiaoyong Zhong, Kaiming Yang, Bing Sun, Guanjun Wang, and Zhengyong Li
Opt. Express 22(2) 1680-1686 (2014)

Sensor based on macrobent fiber Bragg grating structure for simultaneous measurement of refractive index and temperature

Tiegen Liu, Yaofei Chen, Qun Han, Fangchao Liu, and Yunzhi Yao
Appl. Opt. 55(4) 791-795 (2016)

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 (7)

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

Tables (1)

You do not have subscription access to this journal. Article tables 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 (13)

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