Chinese Optics Letters, 2011, 9 (1): 010601, Published Online: Jan. 7, 2011
Characteristics of light polarization in magneto-optic fiber Bragg gratings with linear birefringence Download: 563次
光纤布拉格光栅 法拉第效应 线双折射 偏振相关损耗 060.3735 Fiber Bragg gratings 230.2240 Faraday effect 060.2300 Fiber measurements
Abstract
The coupling between guided optical waves in magneto-optic fiber Bragg gratings (MFBGs) with linear birefringence is investigated using the eigen-mode and coupled-mode approaches. The relationship between the polarization-dependent loss (PDL) and the eigen states of polarization (SOPs) in the MFBGs is discussed. Only the MFBGs with low linear birefringence are applied to the peak PDL-based magnetic field measurement, after which the linear dynamic range is determined using the relative magnitude of linear and magnetically induced circular birefringence. In this letter, a theoretical model is presented to explain the experimental results and help develop novel MFBG-based devices.
Baojian Wu, Chongzhen Li, Kun Qiu, Liwei Cheng. Characteristics of light polarization in magneto-optic fiber Bragg gratings with linear birefringence[J]. Chinese Optics Letters, 2011, 9(1): 010601.