Chinese Optics Letters, 2005, 3 (0s): 138, Published Online: Mar. 5, 2007
Spectral characteristics of cladding index modulated fiber grating
Abstract
A new class of fiber grating with only cladding index modulation is presented and analyzed theoretically. The calculation of the modes involved in this paper is based on a model of three-layer step-index fiber geometry. The transmission of a mode guided by the core through a cladding index modulated grating when evanescent field coupling occurs is analyzed with couple-mode theory. Lower attenuation and flexible spectral characteristics can be obtained in comparison with traditional fiber core index modulated grating.
Na Chen, Binfeng Yun, Yiping Cui. Spectral characteristics of cladding index modulated fiber grating[J]. Chinese Optics Letters, 2005, 3(0s): 138.