A 110 μm×100 μm ultracompact 3×5 arrayed waveguide grating(AWG) demultiplexer is designed and fabricated based on Si on insulator(SOI) nanowire.The transmission spectra are simulated by the simple transmission function,and the stable output optical field distribution is simulated by 2D finite difference time domain(FDTD).The simulated results show that the device is designed with a channel spacing of 11 nm and crosstalk of 18 dB.The device is fabricated on a silicon-on-isolator(SOI) substrate by...