Demonstration of a bandwidth-tunable optical passband filter with tunable attenuation

被引：0

作者：

袁志林 ^{[1
,2
]}

李蔚 ^{[1
]}

杨睿 ^{[2
]}

杨柳 ^{[2
]}

王凡 ^{[2
]}

郭金平 ^{[2
]}

唐丽红 ^{[2
]}

胡强高 ^{[2
]}

徐作为 ^{[1
]}

机构：

[1] Wuhan National Lab for Optoelectrics Huazhong University of Science and Technology

[2] Accelink Technologies Co. Ltd.

来源：

Chinese Optics Letters | 2018年 / 16卷 / 07期

关键词：

ROADM; ECB;

D O I：

暂无

中图分类号：

TN713 [滤波技术、滤波器];

学科分类号：

080902 ;

摘要：

A bandwidth-tunable optical passband filter with tunable attenuation is proposed. The filter, composed of a transmission liquid crystal array and high-resolution diffraction grating, was successfully demonstrated based on the compact spatial light design. Experimental results showed that the bandwidth, wavelength, and attenuation could be tuned by controlling the voltage applied on the liquid crystal array. The insertion loss was less than 3 dB;the attenuation tuning range was from 0 to 15 dB. The bandwidth tuning range was from 50 to 5000 GHz, which covered the full C band. The filter can meet the technical requirements of colorless-directionless-contentionlessflexible reconfigurable optical add/drop multiplexer.

引用

页码：19 / 22

页数：4