Abstract

A miniature Fabry–Perot (FP) interferometric fiber-optic sensor suitable for high-temperature sensing is proposed and demonstrated. The sensor head consists of two FP cavities formed by fusion splicing a short hollow-core fiber and a piece of single-mode fiber at a photonic crystal fiber in series. The reflection spectra of an implemented sensor are measured at several temperatures and analyzed in the spatial frequency domain. The experiment shows that the thermal-optic effect of the cavity material is much more appreciable than its thermal expansion. The temperature measurements up to 1000°C with a step of 50°C confirm that it could be applicable as a high-temperature sensor.

© 2008 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Cross-talk free and ultra-compact fiber optic sensor for simultaneous measurement of temperature and refractive index

Hae Young Choi, Gopinath Mudhana, Kwan Seob Park, Un-Chul Paek, and Byeong Ha Lee
Opt. Express 18(1) 141-149 (2010)

Ultracompact in-line broadband Mach-Zehnder interferometer using a composite leaky hollow-optical-fiber waveguide

Yongmin Jung, Sejin Lee, Byeong Ha Lee, and Kyunghwan Oh
Opt. Lett. 33(24) 2934-2936 (2008)

High-pressure and high-temperature characteristics of a Fabry–Perot interferometer based on photonic crystal fiber

Chuang Wu, H. Y. Fu, Khurram Karim Qureshi, Bai-Ou Guan, and H. Y. Tam
Opt. Lett. 36(3) 412-414 (2011)

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 (4)

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