Filters and Wavelength Multiplexer/Demultiplexers Nadir Dagli, Dan Blumenthal, Larry Coldren, Evelyn Hu Cem Ozturk, Wenbin Zhao, Aimin Xing, Milan Masanovic

Objectives Band stop filters Band pass filters Wavelength multiplexers/demultiplexers Compact devices suitable for integration Electronic tuning and control

Challenge: Integration The need to use the same material structure as the tunable laser and wavelength converter Fabrication process should be compatible with the rest of the processing

Traveling wave resonators as band stop and band pass filters Compact size Easy realization of both functions Compatible with active layer structure because both gain and loss are needed Electronic control is possible

TIR mirrors and highly defined etch structures Eliminates bends Ideal for compact integrated circuits with high level integration

Performance Metrics and Target Goals for 15 month basic period Channel Spacing FSR (nm) Loss (dB) BW (3 dB) tswitch (ms) RRF 100 GHz 30 <10 1 nm 1 msec TIR NA <2 per mirror

Timeline