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Silicon-on-insulator (SOI) phased-array wavelength multi/demultiplexer with extremely low-polarization sensitivity

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4 Author(s)
Trinh, P.D. ; Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA ; Yegnanarayanan, S. ; Coppinger, F. ; Jalali, B.

We demonstrate the first phased-array wavelength multiplexer fabricated in the silicon-on-insulator (SOI) waveguide technology. The four-channel wavelength division multiplexer (WDM) has a channel spacing of 1.9 nm centered at 1550-nm wavelength and a 3-dB channel bandwidth of 0.72 nm. The crosstalk to neighboring channels is less than -22 dB and the on-chip insertion loss is below 6 dB for all channels. The TE-TM shift is less than 0.04 nm which is the smallest attained without compensation techniques in any integrated optic technology.

Published in:

Photonics Technology Letters, IEEE  (Volume:9 ,  Issue: 7 )