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Chin. Phys. B, 2017, Vol. 26(7): 074221    DOI: 10.1088/1674-1056/26/7/074221
ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS Prev   Next  

Low power consumption 4-channel variable optical attenuator array based on planar lightwave circuit technique

Mei-Zhen Ren(任梅珍)1,2, Jia-Shun Zhang(张家顺)1, Jun-Ming An(安俊明)1,2, Yue Wang(王玥)1, Liang-Liang Wang(王亮亮)1, Jian-Guang Li(李建光)1, Yuan-Da Wu(吴远大)1,2, XiaoJie Yin(尹小杰)1, Xiong-Wei Hu(胡雄伟)1
1 State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;
2 College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100083, China
Abstract  

The power consumption of a variable optical attenuator (VOA) array based on a silica planar lightwave circuit was investigated. The thermal field profile of the device was optimized using the finite-element analysis. The simulation results showed that the power consumption reduces as the depth of the heat-insulating grooves is deeper, the up-cladding is thinner, the down-cladding is thicker, and the width of the cladding ridge is narrower. The materials component and thickness of the electrodes were also optimized to guarantee the driving voltage under 5 V. The power consumption was successfully reduced to as low as 155 mW at an attenuation of 30 dB in the experiment.

Keywords:  variable optical attenuator      planar lightwave circuit      low power consumption      thermal simulation  
Received:  01 March 2017      Revised:  28 March 2017      Accepted manuscript online: 
PACS:  42.82.Et (Waveguides, couplers, and arrays)  
  42.30.Lr (Modulation and optical transfer functions)  
  42.82.Bq (Design and performance testing of integrated-optical systems)  
Fund: 

Project supported by the National High Technology Research and Development Program of China (Grant No.2015AA016902) and the National Nature Science Foundation of China (Grant Nos.61435013,61405188,and 61627820).

Corresponding Authors:  Jia-Shun Zhang     E-mail:  zhangjiashun@semi.ac.cn

Cite this article: 

Mei-Zhen Ren(任梅珍), Jia-Shun Zhang(张家顺), Jun-Ming An(安俊明), Yue Wang(王玥), Liang-Liang Wang(王亮亮), Jian-Guang Li(李建光), Yuan-Da Wu(吴远大), XiaoJie Yin(尹小杰), Xiong-Wei Hu(胡雄伟) Low power consumption 4-channel variable optical attenuator array based on planar lightwave circuit technique 2017 Chin. Phys. B 26 074221

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