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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 4 — Feb. 1, 2011
  • pp: 604–607

Dual-wavelength distributed feedback fiber laser based on double exposure and equivalent phase shift method

Linghui Jia, Zuowei Yin, Liang Zhang, and Xiangfei Chen  »View Author Affiliations

Applied Optics, Vol. 50, Issue 4, pp. 604-607 (2011)

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A special sampling structure based on double exposure technology is proposed to achieve dual- wavelength lasing in the distributed feedback fiber laser. This structure is composed of two grating pitches in one sampling period, which could be realized by changing the fiber’s length in the fabrication. Through employing an equivalent phase shift, only a submicrometer-level precision is required for precise phase control. Then a stable dual-wavelength laser with the spacing of 400 pm is obtained in the experiment successfully. The output power is 30.46 μW and the sidemode suppression ratio is 46 dB under a pumped power of 146 mW .

© 2011 Optical Society of America

OCIS Codes
(060.2340) Fiber optics and optical communications : Fiber optics components
(140.3490) Lasers and laser optics : Lasers, distributed-feedback
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: September 8, 2010
Revised Manuscript: December 10, 2010
Manuscript Accepted: December 17, 2010
Published: January 31, 2011

Linghui Jia, Zuowei Yin, Liang Zhang, and Xiangfei Chen, "Dual-wavelength distributed feedback fiber laser based on double exposure and equivalent phase shift method," Appl. Opt. 50, 604-607 (2011)

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