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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 16, Iss. 3 — Mar. 1, 1998
  • pp: 364–

Crosstalk Reduction in a 10-GHz Spacing Arrayed-Waveguide Grating by Phase-Error Compensation

Hiroaki Yamada, Kazumasa Takada, and Seiko Mitachi

Journal of Lightwave Technology, Vol. 16, Issue 3, pp. 364- (1998)


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Abstract

The crosstalk in arrayed-waveguide grating multiplexers with a channel spacing of 10 GHz is reduced by compensating for the phase errors after fabrication. We used the thermooptic effect realized with a thin-film heater and the photoelastic effect obtained with amorphous silicon film, respectively, for dynamic and static phase-error compensation. These two methods were applied to confirm the principle and to realize a stable, stand-alone device, respectively. We have achieved a crosstalk of less than {-}35 dB for the TE polarization mode in a 16\;\times\;16, 10 GHz-spacing arrayed-waveguide grating by using these two phase-error compensation techniques. Static phase-error compensation results in a stable multiplexer which features a low crosstalk of less than {-}30 dB for one of the two polarization modes of all the channels without any external control equipment.

[IEEE ]

Citation
Hiroaki Yamada, Kazumasa Takada, and Seiko Mitachi, "Crosstalk Reduction in a 10-GHz Spacing Arrayed-Waveguide Grating by Phase-Error Compensation," J. Lightwave Technol. 16, 364- (1998)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-16-3-364

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