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Measurement of phase and amplitude error distributions in InP-based arrayed-waveguide grating multi/demultiplexers

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4 Author(s)
Yamada, H. ; NTT Photonics Labs., Ibaraki ; Sanjoh, H. ; Kohtoku, M. ; Takada, K.

The authors have measured the phase and amplitude error distributions in an InP-based arrayed-waveguide grating (AWG) multi/demultiplexer using Fourier transform spectroscopy and signal data processing. The signal data processing technique was based on wavenumber scale transformation and was applied to reduce the effect of second-order dispersion in a measured interferogram. The results reveal that the main origins of the crosstalk and dispersion in an InP-based AWG are random and slowly-varying phase errors, respectively

Published in:

Electronics Letters  (Volume:36 ,  Issue: 2 )