Arrayed waveguide grating-based demultiplexer with two central wavelengths

In this paper we have presented an arrayed waveguide grating with two central wavelengths, 1550.12 nm and 1310.12 nm. Introducing a novel architecture for outputs of system, if input light to arrayed waveguide grating consists of wavelengths around 1550.12 nm, proposed system will act as 16 channels demultiplexer with channel spacing of 1.6 nm. On the other hand when input wavelengths are distributed around 1310.12 nm, the same arrayed waveguide grating will divide the input to 27 channels with channel spacing of 0.68 nm.