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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 5 — Mar. 2, 2009
  • pp: 3124–3129

Repetition rate stabilization of the SBS Q-switched fiber laser by external injection

Zhengqing Pan, Li Meng, Qing Ye, Haiwen Cai, Zujie Fang, and Ronghui Qu  »View Author Affiliations

Optics Express, Vol. 17, Issue 5, pp. 3124-3129 (2009)

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Repetition rate fluctuation is one of the main drawbacks of the low-threshold stimulated Brillouin scattering (SBS) Q-switched fiber laser. A method to stabilize the repetition rate is proposed in this paper by injecting a square-wave modulated light. It is measured experimentally that variance of the repetition rate can be improved from ~20% to ~1% of the period. It is also found that effectiveness of the method depends on modulation frequency and duty cycle of the injection. Its working mechanism is analyzed qualitatively.

© 2009 Optical Society of America

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3540) Lasers and laser optics : Lasers, Q-switched
(290.5900) Scattering : Scattering, stimulated Brillouin
(140.3425) Lasers and laser optics : Laser stabilization

ToC Category:
Lasers and Laser Optics

Original Manuscript: October 6, 2008
Revised Manuscript: December 29, 2008
Manuscript Accepted: January 24, 2009
Published: February 17, 2009

Zhengqing Pan, Li Meng, Qing Ye, Haiwen Cai, Zujie Fang, and Ronghui Qu, "Repetition rate stabilization of the SBS Q-switched fiber laser by external injection," Opt. Express 17, 3124-3129 (2009)

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