光学学报, 2010, 30 (s1): s100210, 网络出版: 2010-12-13
基于布拉格光纤光栅和啁啾光纤光栅的编解码器研究
Research on Coder-Decoder Based on Fiber Bragg Grating and Chirped Fiber Bragg Grating
光纤布拉格光栅 编解码器 波长偏差 啁啾光栅 fiber Bragg grating encoder/decoder wavelength mismatch chirped fiber Bragg grating
摘要
提出一种基于布喇格光纤光栅(FBG)和啁啾光纤光栅(CFBG)的二维编\解码器。分析了FBG编\解码器在对应波长不匹配时,造成了解码输出的自相关光功率的减弱,进而劣化系统的误码率。实验分析了解码器在不同波长偏差、不同跳频数下光功率的变化。根据CFBG反射宽光谱特性,提出了基于CFBG的解码器,给出了CFBG参数。结果表明,基于CFBG的解码器在一定程度上提高了解码输出功率,降低了对编解码器的波长匹配精度的要求,同时还可以实现色散补偿。
Abstract
A two-dimensional code/encode based on chirped fiber Bragg grating (CFBG) and fiber Bragg grating (FBG) is proposed. The degradation of autocorrelation peak with wavelength mismatch of the FBG, and the deterioration of bit error rate consequentially, are investigated. The experimental result of output power versus different mismatch wavelengths and hops is given. The results indicate that the decoder based on CFBG can improve output power a little, which also decrease wavelength matching accuracy and provide dispersion compensation.
赵立龙, 任亚飞, 李传起, 孙婷婷. 基于布拉格光纤光栅和啁啾光纤光栅的编解码器研究[J]. 光学学报, 2010, 30(s1): s100210. Zhao Lilong, Ren Yafei, Li Chuanqi, Sun Tingting. Research on Coder-Decoder Based on Fiber Bragg Grating and Chirped Fiber Bragg Grating[J]. Acta Optica Sinica, 2010, 30(s1): s100210.