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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 6, Iss. 8 — Aug. 10, 2008
  • pp: 568–571

Real-time measurement of the fast axis angle of a quarter-wave plate based on simultaneous phase shifting technique

Kun Yang, Aijun Zeng, Xiangzhao Wang, Hua Wang, and Feng Tang  »View Author Affiliations


Chinese Optics Letters, Vol. 6, Issue 8, pp. 568-571 (2008)


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Abstract

Real-time measurement of the fast axis angle of a quarter-wave plate based on simultaneous phase shifting technique is presented. The simultaneous phase shifting function is realized by an orthogonal grating, a diaphragm, an analyzer array, and a 4-quadrant detector. The intensities of the light beams from the four analyzers with different azimuths are measured simultaneously. The fast axis angle of the quarter-wave plate is obtained through the four light intensity values. In this method, rotating elements are not required, so real-time measurement is achieved.

© 2008 Chinese Optics Letters

OCIS Codes
(050.5080) Diffraction and gratings : Phase shift
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(260.1440) Physical optics : Birefringence
(260.5430) Physical optics : Polarization

Citation
Kun Yang, Aijun Zeng, Xiangzhao Wang, Hua Wang, and Feng Tang, "Real-time measurement of the fast axis angle of a quarter-wave plate based on simultaneous phase shifting technique," Chin. Opt. Lett. 6, 568-571 (2008)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-6-8-568

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