Spread spectrum technique for passive multiplexing of interferometric optical fiber sensors

Deepak G. Uttamchandani; Hamed S. Al-Raweshidy

doi:10.1117/12.45994

1 August 1991 Spread spectrum technique for passive multiplexing of interferometric optical fiber sensors

Deepak G. Uttamchandani, Hamed S. Al-Raweshidy

Proceedings Volume 1511, Fiber Optic Sensors: Engineering and Applications; (1991) https://doi.org/10.1117/12.45994
Event: ECO4 (The Hague '91), 1991, The Hague, Netherlands

Abstract

Two novel techniques for multiplexing interferometric optical fiber sensors have been developed. The techniques use spread spectrum modulation of a semiconductor laser and electronic or electro-optic correlation detection of the returned signals from a network of interferometric sensors. A network consisting of two interferometric sensors in parallel has been assembled. Initial results from our experiments show that while the interrogation system monitors a specific sensor, the signals from other sensors in the network can be suppressed by over 25 dB.

Citation Download Citation

Deepak G. Uttamchandani and Hamed S. Al-Raweshidy "Spread spectrum technique for passive multiplexing of interferometric optical fiber sensors", Proc. SPIE 1511, Fiber Optic Sensors: Engineering and Applications, (1 August 1991); https://doi.org/10.1117/12.45994

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