Intensity based optical fiber strain sensor using long period grating and core mode blocker

Du-sun Hwang; Linh Viet Nguyen; Dae Seung Moon; Youngjoo Chung

doi:10.1117/12.786077

16 May 2008 Intensity based optical fiber strain sensor using long period grating and core mode blocker

Du-sun Hwang, Linh Viet Nguyen, Dae Seung Moon, Youngjoo Chung

Proceedings Volume 7004, 19th International Conference on Optical Fibre Sensors; 70044E (2008) https://doi.org/10.1117/12.786077
Event: 19th International Conference on Optical Fibre Sensors, 2008, Perth, WA, Australia

Abstract

We report an intensity based fiber strain sensor using a long period grating (LPG) pair along with an in-line core mode blocker. By sandwiching the core mode blocker fabricated by arc method between a LPG pair, an band-pass filter was formed. Measured by optical power meter at one specific wavelength, the transmitted power was found to decrease as a variation of axial strain is applied on one single LPFG, therefore we can measure the applied strain by measuring the transmitted power. The measured response of voltage for change of strain was 6.37pV/ με.

Citation Download Citation

Du-sun Hwang, Linh Viet Nguyen, Dae Seung Moon, and Youngjoo Chung "Intensity based optical fiber strain sensor using long period grating and core mode blocker", Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70044E (16 May 2008); https://doi.org/10.1117/12.786077

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