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Polarization-insensitive arrayed-waveguide wavelength multiplexer with birefringence compensating film

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4 Author(s)
Takahashi, H. ; NTT Corp., Ibaraki, Japan ; Hibino, Y. ; Ohmori, Y. ; Kawachi, M.

An integrated-optic polarization-insensitive wavelength multiplexer that is based on an arrayed-waveguide grating is described. Polarization dependence due to thermal stress was eliminated by depositing an a-Si birefringence compensation film on the arrayed-waveguide. The multiplexing operation of 16 wavelength channels with a 0.8 nm spacing was confirmed to be independent of the polarization state.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:5 ,  Issue: 6 )