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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 14 — Jul. 15, 2009
  • pp: 2135–2137

Tunable and switchable multiwavelength erbium-doped fiber ring laser based on a modified dual-pass Mach–Zehnder interferometer

Ai-Ping Luo, Zhi-Chao Luo, and Wen-Cheng Xu  »View Author Affiliations

Optics Letters, Vol. 34, Issue 14, pp. 2135-2137 (2009)

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A tunable and switchable multiwavelength erbium-doped fiber ring laser based on what we believe to be a new type of tunable comb filter is proposed and demonstrated. By adjusting the polarization controllers, the dual-function operation of the channel-spacing tunability and the wavelength switching (interleaving) can be readily achieved. Up to 29 stable lasing lines with 0.4 nm spacing and 14 lasing wavelengths with 0.8 nm spacing in 3 dB bandwidth were obtained at room temperature. In addition, the lasing output, including the number of the lasing lines, the lasing evenness, and the lasing locations, can also be flexibly adjusted through the wavelength-dependent polarization rotation mechanism.

© 2009 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2410) Fiber optics and optical communications : Fibers, erbium
(140.3510) Lasers and laser optics : Lasers, fiber

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: April 8, 2009
Revised Manuscript: May 26, 2009
Manuscript Accepted: May 28, 2009
Published: July 8, 2009

Ai-Ping Luo, Zhi-Chao Luo, and Wen-Cheng Xu, "Tunable and switchable multiwavelength erbium-doped fiber ring laser based on a modified dual-pass Mach-Zehnder interferometer," Opt. Lett. 34, 2135-2137 (2009)

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