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

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

3. 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

4. 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

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

6. 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

7. Timeline