Two-sensor multiplexing in a split-cavity cross-coupled extrinsic fiber interferometer

Venkatapura S. Sudarshanam; Rajat R. Dhawan; Tuan A. Tran; Mary K. Burford; Richard O. Claus

doi:10.1117/12.147976

12 July 1993 Two-sensor multiplexing in a split-cavity cross-coupled extrinsic fiber interferometer

Venkatapura S. Sudarshanam, Rajat R. Dhawan, Tuan A. Tran, Mary K. Burford, Richard O. Claus

Proceedings Volume 1918, Smart Structures and Materials 1993: Smart Sensing, Processing, and Instrumentation; (1993) https://doi.org/10.1117/12.147976
Event: 1993 North American Conference on Smart Structures and Materials, 1993, Albuquerque, NM, United States

Abstract

A multiplexed configuration of the fiber optic extrinsic Fabry-Perot interferometer is demonstrated by using two sensor heads on a single directional coupler in a split-cavity cross- coupled extrinsic fiber interferometric (SCEFI) arrangement. The provision of four-beam interference along with a spectrum analysis detection scheme devised for the SCEFI eliminates the need for quadrature phase biasing and leads to independent measurements of the phase shift in the two sensor heads. Good agreement between the experimental results and the model for interference is demonstrated.

Citation Download Citation

Venkatapura S. Sudarshanam, Rajat R. Dhawan, Tuan A. Tran, Mary K. Burford, and Richard O. Claus "Two-sensor multiplexing in a split-cavity cross-coupled extrinsic fiber interferometer", Proc. SPIE 1918, Smart Structures and Materials 1993: Smart Sensing, Processing, and Instrumentation, (12 July 1993); https://doi.org/10.1117/12.147976

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