Cross-correlation method to obtain temperature profiles from power reflection spectra of a chirped fiber Bragg grating

Daniel J. Kitcher; Anbhawa Nand; Scott A. Wade; Gregory W. Baxter; Stephen F. Collins

doi:10.1117/12.624241

23 May 2005 Cross-correlation method to obtain temperature profiles from power reflection spectra of a chirped fiber Bragg grating

Daniel J. Kitcher, Anbhawa Nand, Scott A. Wade, Gregory W. Baxter, Stephen F. Collins

Author Affiliations +

Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.624241
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium

Abstract

A method of determining the temperature profile along a short length of optical fiber containing a chirped grating is presented. This provides an alternative to the known method of integrating differences between power-only reflectance spectra to recover a distributed measurement of temperature or strain within a chirped grating without the additional equipment requirements of a phase spectrum measurement. In contrast to other methods of processing the spectra of chirped gratings, the windowed cross-correlation method monitors local wavelength shifts directly, and offers immunity to spurious temperature or strain gradients arising from amplitude measurement errors.

Citation Download Citation

Daniel J. Kitcher, Anbhawa Nand, Scott A. Wade, Gregory W. Baxter, and Stephen F. Collins "Cross-correlation method to obtain temperature profiles from power reflection spectra of a chirped fiber Bragg grating", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.624241

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