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: 922次
060.1810 Buffers, couplers, routers,switches, and multiplexers 060.4230 Multiplexing 230.7390 Waveguides, planar
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.