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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 1 — Jan. 3, 2011
  • pp: 218–223

Beat frequency trimming of dual-polarization fiber grating lasers for multiplexed sensor applications

Yang Zhang, Yan-Nan Tan, Tuan Guo, and Bai-Ou Guan  »View Author Affiliations

Optics Express, Vol. 19, Issue 1, pp. 218-223 (2011)

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We demonstrated a method to trim the beat frequency of dual-polarization fiber grating lasers by side-exposing the laser cavity to UV beam. The UV-side-illumination induces an additional birefringence of the cavity fiber and therefore permanently changes the beat frequency of the laser. The beat frequency can be trimmed up or trimmed down, depending on the UV incident direction relative to the intrinsic polarization axis of the active fiber. A trimming range as much as ~700MHz has been achieved. This method allows us to actively control the beat frequency of dual-polarization fiber grating lasers. A 6-channel RF-frequency division multiplexed polarimetric fiber grating laser array has been demonstrated.

© 2010 OSA

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(140.3570) Lasers and laser optics : Lasers, single-mode
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: October 25, 2010
Revised Manuscript: December 14, 2010
Manuscript Accepted: December 14, 2010
Published: December 22, 2010

Yang Zhang, Yan-Nan Tan, Tuan Guo, and Bai-Ou Guan, "Beat frequency trimming of dual-polarization fiber grating lasers for multiplexed sensor applications," Opt. Express 19, 218-223 (2011)

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