Strain sensitivity of long period gratings in hollow-core photonic bandgap fibers

Long Jin; Wei Jin; Jian Ju

doi:10.1117/12.885840

19 May 2011 Strain sensitivity of long period gratings in hollow-core photonic bandgap fibers

Long Jin, Wei Jin, Jian Ju

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77539P (2011) https://doi.org/10.1117/12.885840
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

Abstract

We investigate the strain sensitivity of long period gratings (LPGs) fabricated in hollow-core photonic bandgap fibers (HC-PBFs). The LPGs are fabricated by periodically deforming the air-holes along the PBFs by use of a CO₂ laser. Resonant couplings between the LP₀₁ and LP₁₁ core modes results in two highly polarization-dependant loss dips in the transmission spectrum. The sensitivity of the resonant wavelength to strain was found to vary from -1.48 to -2.4 pm/με when the grating pitch was changed from 225 to 175 μm. Theoretical investigation suggests that the size and shape of the core can have significant influence on the strain sensitivity.

Citation Download Citation

Long Jin, Wei Jin, and Jian Ju "Strain sensitivity of long period gratings in hollow-core photonic bandgap fibers", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77539P (19 May 2011); https://doi.org/10.1117/12.885840

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