SILICON ARRAYED WAVEGUIDE GRATING DEVICE FOR REDUCING EFFECTIVE REFRACTIVE INDEX VARIATION OF OPTICAL WAVEGUIDE ACCORDING TO TEMPERATURE

摘要

A silicon array waveguide grating device is provided to reduce a temperature dependency of the AWG(Arrayed Waveguide Grating) device by adjusting an effective refractive index for respective regions of the waveguide. A silicon array waveguide grating device includes an input waveguide(20) and a first coupler(22). The first coupler is connected to one end of the input waveguide. A silicon array waveguide(24) is connected to one end of the first coupler. The silicon array waveguide includes plural waveguides. The waveguide includes a straight portion(LR) and a curved portion(CR). The curved portion has a minimum curvature. A second coupler(26) is coupled with one end of the waveguide. An output waveguide(28) is connected to one end of the second coupler.