Share Email Print
cover

Proceedings Paper

FBG-microfiber-FBG cascade Fabry-Perot interferometer for simultaneous measurement of temperature and refractive index
Author(s): Jiejun Zhang; Qizhen Sun; Ruibing Liang; Jianghai Wo; Deming Liu
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

A microfiber Fabry-Perot interferometer (FPI) which employs two fiber Bragg Gratings (FBGs) as reflection mirrors and a short length microfiber as its cavity is proposed and fabricated. Theoretic study shows that the reflection spectrum of such microfiber FPI is consisted of two parts - interference fringes induced by FPI and reflection band induced by FBGs. Temperature affects both parts while ambient refractive index only influences the first part, i.e. microfiber FPI has different response to temperature and RI. Therefore, Dual-parameter measurement is experimentally demonstrated by tracking the FSR variation and the central wavelength shift of the reflection spectrum of microfiber FPI.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84217S (7 November 2012); doi: 10.1117/12.970390
Show Author Affiliations
Jiejun Zhang, National Engineering Lab. for Next Generation Internet Access System (China)
Huazhong Univ. of Science and Technology (China)
Qizhen Sun, National Engineering Lab. for Next Generation Internet Access System (China)
Huazhong Univ. of Science and Technology (China)
Ruibing Liang, National Engineering Lab. for Next Generation Internet Access System (China)
Huazhong Univ. of Science and Technology (China)
Jianghai Wo, National Engineering Lab. for Next Generation Internet Access System (China)
Huazhong Univ. of Science and Technology (China)
Deming Liu, National Engineering Lab. for Next Generation Internet Access System (China)
Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

© SPIE. Terms of Use
Back to Top