The distributed Brillouin sensor system based on offset locking two DFB lasers

Yun Li; Xiaoyi Bao; Lufan Zou; Fabien Ravet

doi:10.1117/12.725907

5 March 2007 The distributed Brillouin sensor system based on offset locking two DFB lasers

Yun Li, Xiaoyi Bao, Lufan Zou, Fabien Ravet

Proceedings Volume 6595, Fundamental Problems of Optoelectronics and Microelectronics III; 65952T (2007) https://doi.org/10.1117/12.725907
Event: Fundamental Problems of Optoelectronics and Microelectronics III, 2006, Harbin, China

Abstract

In this paper, we demonstrated a distributed Brillouin sensor based on the offset locking of two 1550nm DFB lasers. We use PID controller and optical delay line to lock and tune the frequency difference between two DFB lasers and we also use lock in amplifier to stabilize the DC level of the EOM. The power depletion in the Brillouin scattering has been studied to show optimized strain and temperature accuracy. With this sensor system, we can get the spatial resolution which is 1m with temperature resolution of < 1°C.

Citation Download Citation

Yun Li, Xiaoyi Bao, Lufan Zou, and Fabien Ravet "The distributed Brillouin sensor system based on offset locking two DFB lasers", Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 65952T (5 March 2007); https://doi.org/10.1117/12.725907

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available