Calculation of accurate channel spacing of an arrayed waveguide grating optical multiplexer/demultiplexer applying position method

In this paper we present the position method to correct the channel spacing between the transmitted channels of an AWG. The developed position method was applied to 20-ch 200 GHz AWG and the achieved results confirm very good correlation between required channel spacing (200 GHz) and the channel spacings calculated from simulated AWG transmission characteristics.