Measurement of phase and amplitude error distributions in InP-basedarrayed-waveguide grating multi/demultiplexers |
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Authors: | Yamada H Sanjoh H Kohtoku M Takada K |
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Affiliation: | NTT Photonics Labs., Ibaraki; |
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Abstract: | 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 |
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