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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 22 — Aug. 1, 2013
  • pp: 5371–5375

Polarization characteristics of He–Ne laser with different directions of polarized feedback

Yun Wu, Yidong Tan, Shulian Zhang, Zhaoli Zeng, and Yan Li  »View Author Affiliations


Applied Optics, Vol. 52, Issue 22, pp. 5371-5375 (2013)
http://dx.doi.org/10.1364/AO.52.005371


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Abstract

A polarizer is placed in an external feedback cavity to form polarized optical feedback. The effect of the different directions of polarized optical feedback on laser polarization characteristics (LPCs) is investigated experimentally and theoretically. The angle between the optical axis of the polarizer and the laser polarization is changed from 0° to 90°. It is found that LPCs vary greatly under different directions of polarized optical feedback. The angle range can be divided into five zones (two flipping zones, -polarization zone, bistable zone, and -polarization zone) according to the different LPCs. When the angle is in the range of the -polarization zone (-polarization zone), the laser outputs -polarization (-polarization). Thus, one can choose either -polarization or -polarization by properly aligning the axis of the polarizer.

© 2013 Optical Society of America

OCIS Codes
(140.1340) Lasers and laser optics : Atomic gas lasers
(260.5430) Physical optics : Polarization

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: June 3, 2013
Revised Manuscript: July 2, 2013
Manuscript Accepted: July 2, 2013
Published: July 24, 2013

Citation
Yun Wu, Yidong Tan, Shulian Zhang, Zhaoli Zeng, and Yan Li, "Polarization characteristics of He–Ne laser with different directions of polarized feedback," Appl. Opt. 52, 5371-5375 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-22-5371

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