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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 25 — Dec. 7, 2009
  • pp: 23299–23308

A passive method to compensate nonlinearity in a homodyne interferometer

Jeongho Ahn, Jong-Ahn Kim, Chu-Shik Kang, Jae Wan Kim, and Soohyun Kim  »View Author Affiliations

Optics Express, Vol. 17, Issue 25, pp. 23299-23308 (2009)

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This study presents an analysis of the nonlinearity resulting from polarization crosstalk at a polarizing beam splitter (PBS) and a wave plate (WP) in a homodyne interferometer. From a theoretical approach, a new compensation method involving a realignment of the axes of WPs to some specific angles according to the characteristics of the PBS is introduced. This method suppresses the nonlinearity in a homodyne interferometer to 0.36 nm, which would be 3.75 nm with conventional alignment methods of WPs.

© 2009 OSA

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3180) Instrumentation, measurement, and metrology : Interferometry

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: October 23, 2009
Revised Manuscript: November 19, 2009
Manuscript Accepted: November 19, 2009
Published: December 4, 2009

Jeongho Ahn, Jong-Ahn Kim, Chu-Shik Kang, Jae Wan Kim, and Soohyun Kim, "A passive method to compensate nonlinearity 
in a homodyne interferometer," Opt. Express 17, 23299-23308 (2009)

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