Beam steering type 1:4 optical switch with polymer thermo-optic phase shifters in a silica arrayed-waveguide

Kenichi Masuda; Atsushi Tate; Mariko Ishida; Takanori Suzuki; Hiroyuki Tsuda

doi:10.1117/12.589970

31 March 2005 Beam steering type 1:4 optical switch with polymer thermo-optic phase shifters in a silica arrayed-waveguide

Kenichi Masuda, Atsushi Tate, Mariko Ishida, Takanori Suzuki, Hiroyuki Tsuda

Author Affiliations +

Proceedings Volume 5728, Integrated Optics: Devices, Materials, and Technologies IX; (2005) https://doi.org/10.1117/12.589970
Event: Integrated Optoelectronic Devices 2005, 2005, San Jose, California, United States

Abstract

A beam steering type 1:4 optical switch with phase shifters in a silica arrayed-waveguide is proposed. It consists of collimating waveguide mirrors, an arrayed-waveguide which has deep trenches with polymer materials, and input/output waveguides. It can switch the output port of the incident light at high extinction ratio. The incident light is guided to the front mirror, collimated, and input to the arrayed-waveguide. Each waveguide in the arrayed-waveguide has the same length. The number of narrow trenches filled with polymer linearly increases in order. The refractive index of the polymer is set to the effective index of the single mode silica waveguide at certain temperature. The propagation direction of the output light from the arrayed-waveguide can be controlled by changing the temperature of the device because of the large thermo-optic coefficient of the polymer. The second mirror converges the light into one of the output waveguide. We designed two types of the switch which had 9 or 15 waveguides in the arrayed waveguide and they are under fabrication. The chip sizes are about 2.5 mm x 8.0 mm and 2.5 mm x 9.0 mm, respectively. The required temperature shift for the switching from one output port to the adjacent output port is 20 [K] when we use the polymer with a TO coefficient of -1.8x10^-4 [1/K].

Citation Download Citation

Kenichi Masuda, Atsushi Tate, Mariko Ishida, Takanori Suzuki, and Hiroyuki Tsuda "Beam steering type 1:4 optical switch with polymer thermo-optic phase shifters in a silica arrayed-waveguide", Proc. SPIE 5728, Integrated Optics: Devices, Materials, and Technologies IX, (31 March 2005); https://doi.org/10.1117/12.589970

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