Effects of pre-strain on the intrinsic pressure sensitivity of polymer optical fiber Bragg gratings

Jens Kristian Mølgaard Pedersen; Getinet Woyessa; Kristian Nielsen; Ole Bang

doi:10.1117/12.2265885

23 April 2017 Effects of pre-strain on the intrinsic pressure sensitivity of polymer optical fiber Bragg gratings

Jens Kristian Mølgaard Pedersen, Getinet Woyessa, Kristian Nielsen, Ole Bang

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103234U (2017) https://doi.org/10.1117/12.2265885
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

We experimentally demonstrate a scheme for improving the intrinsic pressure sensitivity of fiber Bragg-gratings (FBGs) inscribed in polymer optical fibers by applying pre-strain in order to suppress the pressure induced mechanical contraction of the fiber. This contraction would otherwise contribute to a blueshift of the Brag-wavelength, counteracting the dominant redshift caused by the stress-optic effect, which effectively reduces the pressure sensitivity of the FBG. By applying this technique we are able to improve the sensitivity of the FBG from 2.8 pm/bar to 7.3 pm/bar.

Citation Download Citation

Jens Kristian Mølgaard Pedersen, Getinet Woyessa, Kristian Nielsen, and Ole Bang "Effects of pre-strain on the intrinsic pressure sensitivity of polymer optical fiber Bragg gratings", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103234U (23 April 2017); https://doi.org/10.1117/12.2265885

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