Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Fiber Bragg grating Fabry-Perot cavity sensor based on pulse laser demodulation technique

Not Accessible

Your library or personal account may give you access

Abstract

We demonstrate a fiber laser sensing technique based on fiber Bragg grating Fabry-Perot (FBG-FP) cavity interrogated by pulsed laser, where short pulses generated from active mode-locked erbium-doped fiber ring laser and current modulated DFB laser are adopted. The modulated laser pulses launched into the FBG-FP cavity produce a group of reflected pulses. The optical loss in the cavity can be determined from the power ratio of the first two pulses reflected from the cavity. This technique does not require high reflectivity FBGs and is immune to the power fluctuation of the light source. Two short pulse laser sources were compared experimentally with each other on pulse width, pulse stability, pulse chirp and sensing efficiency.

© 2011 Optical Society of America

PDF Article
More Like This
Fiber Laser Sensor Based on Fiber-Bragg-Grating Fabry-Perot Cavity

Jianfeng Chen, Yunqi Liu, Tongjian Cai, and Tingyun Wang
798615 Asia Communications and Photonics Conference and Exhibition (ACP) 2010

Demodulation of a Fiber Bragg Grating Sensor System Based on a Linear Cavity Multi-wavelength Fiber Laser

Shan Cong, Yunxu Sun, Lifeng Pan, Yating Fang, Jiajun Tian, Yanfu Yang, and Yao Yong
831105 Asia Communications and Photonics Conference and Exhibition (ACP) 2011

Highly Accurate Fiber Strain Sensor Based on Low Reflective Fiber Bragg Gratings and Fiber Fabry-Perot Cavities

T. Kobayashi, Y. Enami, and H. Iwashima
TuE12 Optical Fiber Sensors (OFS) 2006

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved