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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Stephen A. Burns
  • Vol. 25, Iss. 11 — Nov. 1, 2008
  • pp: 2630–2635

Differential phase decoder in a polarized optical heterodyne interferometer

Chien Chou, Hui-Kang Teng, Chien-Chung Tsai, and Jheng-Syong Wu  »View Author Affiliations

JOSA A, Vol. 25, Issue 11, pp. 2630-2635 (2008)

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A differential-phase decoder (DPD) together with a polarization common-path optical heterodyne interferometer is set up. Based on this interferometric configuration and a novel balanced-detector scheme, the performance of the quantum-noise-limited differential-phase decoder is demonstrated and analyzed. The minimum-detectable differential phase is on the order of 10 7 rad Hz when a 2.5 mW He–Ne laser is used. Verified experimentally, the DPD is immune to the common-phase noise induced by an electro-optic phase modulator or by thermal disturbance within the interferometer. This signifies that the minimum-detectable differential phase can become 10 8 rad Hz if a 300 mW continuous wave laser is employed instead.

© 2008 Optical Society of America

OCIS Codes
(040.2840) Detectors : Heterodyne
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(120.5410) Instrumentation, measurement, and metrology : Polarimetry

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: April 7, 2008
Revised Manuscript: August 16, 2008
Manuscript Accepted: August 22, 2008
Published: October 6, 2008

Virtual Issues
Vol. 4, Iss. 1 Virtual Journal for Biomedical Optics

Chien Chou, Hui-Kang Teng, Chien-Chung Tsai, and Jheng-Syong Wu, "Differential phase decoder in a polarized optical heterodyne interferometer," J. Opt. Soc. Am. A 25, 2630-2635 (2008)

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