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We have demonstrated wavelength demultiplexing and switching in variable index arrayed waveguides by carrier injection. Array waveguide dependent refractive index change was observed and 2 port switching was obtained in the fabricated device.
We have demonstrated wavelength switching in variable index arrayed waveguides by TO effect. Four-port switching with demultiplexed 4 wavelengths light was achieved and consumption power was reduced half compared to the previous switching device.
We have demonstrated a carrier-injection-type wavelength switch composed of the straight waveguide array using GaInAs/InP MQW with linearly varying refractive index distribution fabricated by selective MOVPE.
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