A distributed-feedback fiber-laser-based optical fiber hydrophone system with very high sensitivity

Ian Leung; Zourab Brodzeli; Trevor Whitbread; Xiao-Bao Chen; Gang-Ding Peng

doi:10.1117/12.580706

14 February 2005 A distributed-feedback fiber-laser-based optical fiber hydrophone system with very high sensitivity

Ian Leung, Zourab Brodzeli, Trevor Whitbread, Xiao-Bao Chen, Gang-Ding Peng

Proceedings Volume 5634, Advanced Sensor Systems and Applications II; (2005) https://doi.org/10.1117/12.580706
Event: Photonics Asia, 2004, Beijing, China

Abstract

This paper reports the development of a very compact and very-high sensitivity optical fibre hydrophone system using a distributed-feedback fibre laser with a cavity length of 10cm. A theoretical system design making use of a Mach-Zehnder interferometer, homodyne demodulation scheme and digital signal processing is described. At the time of writing, the system is only partially completed; therefore the content of this paper will focus on the distributed-feedback fibre laser sensor head. Results for noise spectrum below 100kHz are presented, as well as discussions on some key issues with designing such hydrophone systems. Although not the intention for the system, initial results also indicate the suitability of the DFBFL for intensity modulated sensing.

Citation Download Citation

Ian Leung, Zourab Brodzeli, Trevor Whitbread, Xiao-Bao Chen, and Gang-Ding Peng "A distributed-feedback fiber-laser-based optical fiber hydrophone system with very high sensitivity", Proc. SPIE 5634, Advanced Sensor Systems and Applications II, (14 February 2005); https://doi.org/10.1117/12.580706

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