使用线性啁啾相位掩模制作的光纤布拉格光栅的40Gb/s系统中的热可调色散补偿器。

Thermally tunable dispersion compensator in 40-Gb/s system using FBG fabricated with linearly chirped phase mask.

作者信息

Sun Jie, Dai Yitang, Chen Xiangfei, Zhang Yejin, Xie Shizhong

出版信息

Opt Express. 2006 Jan 9;14(1):44-9. doi: 10.1364/opex.14.000044.

DOI:10.1364/opex.14.000044

PMID:19503314

Abstract

An improved design and fabrication method of nonlinearly chirped fiber Bragg gratings is demonstrated. Based on reconstruction-equivalent- chirp method, the nonlinearly chirped fiber Bragg grating is realized with a linearly chirped phase mask instead of a uniform one, which improves the performance of the device. Coated with uniform thin metal film, the obtained grating works as a tunable dispersion compensator with a tuning range ~200ps/nm, peak-to-peak group delay ripple <14ps and 3-dB bandwidth approximately 2nm. Employing this device, the power penalty in a 40- Gb/s X5/10km conventional single mode fiber using carrier suppressed return-to-zero format is less than 0.7dB at a BER=10-10.

摘要

展示了一种改进的非线性啁啾光纤布拉格光栅的设计与制造方法。基于重构等效啁啾方法，利用线性啁啾相位掩模而非均匀相位掩模实现了非线性啁啾光纤布拉格光栅，这提高了器件性能。所制备的光栅涂覆有均匀的薄金属膜，可作为可调色散补偿器，其调谐范围约为200ps/nm，峰峰值群时延纹波<14ps，3dB带宽约为2nm。采用该器件，在误码率BER = 10^-10时，40 Gb/s X5/10km传统单模光纤中采用载波抑制归零格式时的功率代价小于0.7dB。