Translator Disclaimer
19 May 2011 Strain sensitivity of long period gratings in hollow-core photonic bandgap fibers
Author Affiliations +
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.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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
PROCEEDINGS
4 PAGES


SHARE
Advertisement
Advertisement
Back to Top