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

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Abstract

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-contentionless-flexible reconfigurable optical add/drop multiplexer.

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DOI:10.3788/col201816.070602

所属栏目:Fiber optics and optical communication

基金项目:This work was supported by the National “863” Program of China (No. 2015AA017002).

收稿日期:2018-03-16

录用日期:2018-05-08

网络出版日期:2018-06-28

作者单位    点击查看

Zhilin Yuan:Wuhan National Lab for Optoelectrics, Huazhong University of Science and Technology, Wuhan 430074, ChinaAccelink Technologies Co., Ltd., Wuhan 430205, China
Wei Li:Wuhan National Lab for Optoelectrics, Huazhong University of Science and Technology, Wuhan 430074, China
Rui Yang:Accelink Technologies Co., Ltd., Wuhan 430205, China
Liu Yang:Accelink Technologies Co., Ltd., Wuhan 430205, China
Fan Wang:Accelink Technologies Co., Ltd., Wuhan 430205, China
Jinping Guo:Accelink Technologies Co., Ltd., Wuhan 430205, China
Lihong Tang:Accelink Technologies Co., Ltd., Wuhan 430205, China
Qianggao Hu:Accelink Technologies Co., Ltd., Wuhan 430205, China
Zuowei Xu:Wuhan National Lab for Optoelectrics, Huazhong University of Science and Technology, Wuhan 430074, China

联系人作者:Wei Li(weilee@hust.edu.cn)

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引用该论文

Zhilin Yuan, Wei Li, Rui Yang, Liu Yang, Fan Wang, Jinping Guo, Lihong Tang, Qianggao Hu, Zuowei Xu, "Demonstration of a bandwidth-tunable optical passband filter with tunable attenuation," Chinese Optics Letters 16(7), 070602 (2018)

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