The Control of Multimode Effect on Arrayed Waveguide Grating-Device

초록

We report on the method of successfully controlling the multimode effect in an arrayed waveguide (AWG) grating-device, in which the propagation modes of the optical waves are determined by the waveguide structure. As the grating order (m) changes, the imaging profiles for the other modes also change and can be effectively controlled. We found optimized values of order m for a given InP-ridge-type waveguide that can minimize the channel crosstalk. We compared the results of our simulation study with the experimental results that we obtained from the AWG device that we designed and fabricated by controlling various grating orders of m.