Abstract

In chirped fiber Bragg gratings, structural perturbations and the effect of cladding-mode coupling are shown to be distinguishable. To this end, the absolute value and the phase of the experimentally determined complex coupling coefficient are Fourier transformed separately, yielding a set of discrete lines that can be clearly identified and be traced back to cladding-modes. Removing these lines yields the grating properties in the absence of cladding-modes.

© 2011 IEEE

Influence of cladding-mode coupling losses on the spectrum of a linearly chirped multi-channel fiber bragg grating

Hongpu Li, Yuusaka Nakamura, Kazuhiko Ogusu, Yunlong Sheng, and Joshua E. Rothenberg
Opt. Express 13(4) 1281-1290 (2005)

Characterization of strong fiber Bragg gratings using an applied thermal chirp and iterative algorithm

Gary A. Miller, John R. Peele, Charles G. Askins, and Geoffrey A. Cranch
Appl. Opt. 50(36) 6617-6626 (2011)

Cladding-mode-assisted recouplings in concatenated long-period and fiber Bragg gratings

A-Ping Zhang, Xiao-Ming Tao, Weng-Hong Chung, Bai-Ou Guan, and Hwa-Yaw Tam
Opt. Lett. 27(14) 1214-1216 (2002)

Improved implementation of optical space domain reflectometry for characterizing the complex coupling coefficient of strong fiber Bragg gratings

Geoffrey A. Cranch and Gary A. Miller
Appl. Opt. 48(22) 4506-4513 (2009)

Optical fiber refractometer based on cladding-mode Bragg grating

Ming Han, Fawen Guo, and Yongfeng Lu
Opt. Lett. 35(3) 399-401 (2010)