Interferometric Method for Phase Error Measurement in an Arrayed Waveguide Grating with a Free Space Output

  • Zektzer R
  • Sinefeld D
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We demonstrate a simple phase error measurement technique for AWG that radiate to free-space. The pair-wise far-field interference pattern of adjacent waveguides is used to measure the relative phase shift, with 13mrad accuracy.

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  • Roy Zektzer

  • David Sinefeld

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