Chinese Optics Letters, 2018, 16 (1): 010601, Published Online: Jul. 17, 2018   

Design and fabrication of wavelength tunable AWGs based on the thermo-optic effect Download: 920次

Author Affiliations
1 State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Science, Beijing 100083, China
2 College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100083, China
Abstract
In this Letter, a 16 channel 200 GHz wavelength tunable arrayed waveguide grating (AWG) is designed and fabricated based on the silicon on insulator platform. Considering that the performance of the AWG, such as central wavelength and crosstalk, is sensitive to the dimension variation of waveguides, the error analysis of the AWG with width fluctuations is worked out using the transfer function method. A heater is designed to realize the wavelength tunability of the AWG based on the thermo-optic effect of silicon. The measured results show that the insertion loss of the AWG is about 6 dB, and the crosstalk is 7.5 dB. The wavelength tunability of 1.1 nm is achieved at 276 mW power consumption, and more wavelength shifts will gain at larger power consumption.

Pei Yuan, Yue Wang, Yuanda Wu, Junming An, Xiongwei Hu. Design and fabrication of wavelength tunable AWGs based on the thermo-optic effect[J]. Chinese Optics Letters, 2018, 16(1): 010601.

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