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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 24 — Dec. 15, 2009
  • pp: 3914–3916

Phase-modulation method for AWG phase-error measurement in the frequency domain

Kazumasa Takada and Tomohiro Hirose  »View Author Affiliations


Optics Letters, Vol. 34, Issue 24, pp. 3914-3916 (2009)
http://dx.doi.org/10.1364/OL.34.003914


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Abstract

We report a phase-modulation method for measuring arrayed waveguide grating (AWG) phase error in the frequency domain. By combining the method with a digital sampling technique that we have already reported, we can measure the phase error within an accuracy of ±0.055 rad for the center 90% waveguides in the array even when no carrier frequencies are generated in the beat signal from the interferometer.

© 2009 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(130.2790) Integrated optics : Guided waves
(230.7390) Optical devices : Waveguides, planar

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: April 27, 2009
Revised Manuscript: September 8, 2009
Manuscript Accepted: November 5, 2009
Published: December 15, 2009

Citation
Kazumasa Takada and Tomohiro Hirose, "Phase-modulation method for AWG phase-error measurement in the frequency domain," Opt. Lett. 34, 3914-3916 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-24-3914

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