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18 June 2002 Proposal of arrayed waveguides optical deflector and wavelength divide optical switch
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Proceedings Volume 4640, Integrated Optics: Devices, Materials, and Technologies VI; (2002) https://doi.org/10.1117/12.433292
Event: Symposium on Integrated Optoelectronic Devices, 2002, San Jose, California, United States
Abstract
We have proposed the optical deflector using arrayed waveguides that have different refractive index fabricated by MOVPE selective area growth. By placing the asymmetric width of SiO2 mask pattern on both sides of the arrayed waveguide, the thickness of each waveguide in the array has changed gradually. And the phase change in each arrayed waveguide results the deflection of the light. In this device, we have numerically calculated and fabricated the 1xN multi-mode interference (MMI) star coupler using GaInAs/InP MQW structure to input the light equally for each arrayed waveguide. From the numerical calculation, we obtain 0.42dB fluctuation of the output light power in each waveguide in the 1x16 MMI waveguide. In the experiment, we fabricated the 1x16 MMI waveguide using GaInAs/InP MQW structure, and 0.88dB fluctuation of the output light was obtained for the 1.56μm wavelength input light. And further, we have numerically calculated the wavelength demultiplexing and switching performance in this device. We have obtained the wavelength dependence of output power in 8 arrayed waveguides that have 1.0% refractive index difference in both sides of the arrayed waveguide. From this analysis, we can exchange the output ports of each wavelength by controlling the refractive index in the arrayed waveguide.
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Yasumasa Kawakita, Tatsuya Kihara, Kazunori Miki, and Kazuhiko Shimomura "Proposal of arrayed waveguides optical deflector and wavelength divide optical switch", Proc. SPIE 4640, Integrated Optics: Devices, Materials, and Technologies VI, (18 June 2002); https://doi.org/10.1117/12.433292
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