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Chin. Opt. Lett.
 Home  List of Issues    Issue 07 , Vol. 16 , 2018    10.3788/COL201816.070602

Demonstration of a bandwidth-tunable optical passband filter with tunable attenuation
Zhilin Yuan1;2, Wei Li1, Rui Yang2, Liu Yang2, Fan Wang2, Jinping Guo2, Lihong Tang2, Qianggao Hu2, and Zuowei Xu1
1 Wuhan National Lab for Optoelectrics, [Huazhong University of Science and Technology], Wuhan 430074, China
2 Accelink Technologies Co., Ltd., Wuhan 4302 05, China

Chin. Opt. Lett., 2018, 16(07): pp.070602

Topic:Fiber optics and optical communication
Keywords(OCIS Code): 060.2605  130.7408  230.3720  

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.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Posted online:2018/6/28

Get Citation: Zhilin Yuan, Wei Li, Rui Yang, Liu Yang, Fan Wang, Jinping Guo, Lihong Tang, Qianggao Hu, and Zuowei Xu, "Demonstration of a bandwidth-tunable optical passband filter with tunable attenuation," Chin. Opt. Lett. 16(07), 070602(2018)

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


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