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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 46, Iss. 23 — Aug. 10, 2007
  • pp: 5617–5621

Multifrequency erbium-doped fiber laser operating at room temperature

Kejiang Zhou, Quoc Nam Ngo, Xulin Zhang, Zhonghe Jin, Dongyun Zhou, and Duan Liu  »View Author Affiliations

Applied Optics, Vol. 46, Issue 23, pp. 5617-5621 (2007)

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A method to realize room-temperature operation of a multifrequency Er-doped fiber laser with low-frequency shift feedback placed within a linear laser cavity is theoretically proposed and experimentally demonstrated. Simultaneous multiwavelength lasing with 0.5   nm wavelength spacing is experimentally demonstrated by applying a sinusoidal signal of 10   kHz to a fiber phase modulator inserted within the linear cavity to prevent single wavelength steady-state oscillation. In the linear cavity, an all-polarization-maintaining fiber Sagnac loop is used as a periodic filter, and a single-mode fiber loop with a polarization controller is used as a partial reflector and also as an output port.

© 2007 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2410) Fiber optics and optical communications : Fibers, erbium
(060.5060) Fiber optics and optical communications : Phase modulation

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: January 16, 2007
Revised Manuscript: May 8, 2007
Manuscript Accepted: May 18, 2007
Published: August 8, 2007

Kejiang Zhou, Quoc Nam Ngo, Xulin Zhang, Zhonghe Jin, Dongyun Zhou, and Duan Liu, "Multifrequency erbium-doped fiber laser operating at room temperature," Appl. Opt. 46, 5617-5621 (2007)

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