20 December 2013 Power-referenced refractometer based on hybrid fiber grating
Author Affiliations +
Proceedings Volume 9044, 2013 International Conference on Optical Instruments and Technology: Optical Sensors and Applications; 90440G (2013) https://doi.org/10.1117/12.2037187
Event: International Conference on Optical Instruments and Technology (OIT2013), 2013, Beijing, China
Abstract
A power-referenced fiber refractometer based on a hybrid fiber grating formed by a tilted-fiber Bragg grating (TFBG) cascading by a chirped-fiber Bragg grating (CFBG) is proposed and experimentally demonstrated. The optical signal reflected by the CFBG passes twice through the TFBG that enhances sensitivity of the refractometer. In addition, the optical signal is propagating all the way in the fiber core so that the extra insertion loss is low. Refractive index measurement with sensitivity up to 597.2 μW/R.I.U. is achieved within the range from 1.333 to ~1.42. The maximum detectable refractive index is ~1.45.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xinyong Dong, Jie Zheng, Perry Ping Shum, "Power-referenced refractometer based on hybrid fiber grating", Proc. SPIE 9044, 2013 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 90440G (20 December 2013); doi: 10.1117/12.2037187; https://doi.org/10.1117/12.2037187
PROCEEDINGS
5 PAGES


SHARE
Back to Top