Abstract :
An eight-channel flat spectral response arrayed-waveguide grating multiplexer with parabolic waveguide horns has been fabricated on a planar lightwave circuit (PLC). A double-peaked intensity distribution is formed at the slab interface by the parabolic waveguide horn. A 1 dB bandwidth of 98 GHz, 3 dB bandwidth of 124 GHz and 20 dB bandwidth of 196 GHz are obtained for 200 GHz channel spacing. The crosstalk to neighbouring channels is less than -27 dB and the on-chip insertion losses range from 6.1 to 6.4 dB, respectively
Keywords :
diffraction gratings; multiplexing equipment; optical communication equipment; optical planar waveguides; wavelength division multiplexing; 6.1 to 6.4 dB; 98 to 196 GHz; arrayed-waveguide grating multiplexer; crosstalk; eight-channel configuration; flat spectral response; onchip insertion losses; optical WDM; parabolic waveguide horns; planar lightwave circuit;
