Design of multi-mode interference devices for optical switch using arrayed waveguides - application for wavelength divide device

摘要

We have proposed the optical deflector using arrayed waveguides that have different refractive index by MOVPE selective area growth with asymmetric width of SiO{sub}2 mask pattern on both sides of the arrayed waveguide where the thickness of the each arrayed waveguide has changed gradually And the phase change in each arrayed waveguide results the deflection of the light. We have numerically calculated and fabricated the 1×N multi-mode interference (MMI) star coupler using GaInAs/InP MQW structure to input the light equally Ilor each arrayed waveguide. From the numerical calculation, we obtain 0.42dB fluctuation of the output light power in each waveguide in the 1×16 device. In the experiment, 0.88dB fluctuation of the output light was obtained for the 1.56 μm wavelength input light. And further, we have numerically calculated the performance of the wavelength divide device by using this arrayed waveguide.