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Optics Express

Optics Express

  • Vol. 16, Iss. 16 — Aug. 4, 2008
  • pp: 11830–11835

Single-polarization, switchable dual-wavelength erbium-doped fiber laser with two polarization-maintaining fiber Bragg gratings

Suchun Feng, Ou Xu, Shaohua Lu, Xiangqiao Mao, Tigang Ning, and Shuisheng Jian  »View Author Affiliations

Optics Express, Vol. 16, Issue 16, pp. 11830-11835 (2008)

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An improved erbium-doped fiber laser configuration for achieving single-polarization, switchable dual-wavelength of orthogonal polarizations oscillations at room temperature is proposed. For the first time,two fiber Bragg gratings (FBGs) directly written in a polarization-maintaining (PM) and photosensitive erbium-doped fiber (PMPEDF) as the wavelength-selective component are used in a linear laser cavity. Due to the polarization hole burning (PHB) enhanced by the polarization-maintaining FBG (PMFBG), the laser can be designed to operate in stable dual-wavelength or wavelength-switching modes with a wavelength spacing of 0.336nm at room temperature by adjusting a polarization controller (PC). Each lasing line shows a single polarization with a polarization extinction ratio of >25dB under different pump levels. The optical signal-to-noise ratio (OSNR) is greater than 50 dB. The amplitude variation with 16 times scans in nearly one and half an hour is less than 0.5dB at both operating wavelength.

© 2008 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
(060.2420) Fiber optics and optical communications : Fibers, polarization-maintaining
(060.3738) Fiber optics and optical communications : Fiber Bragg gratings, photosensitivity
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: May 7, 2008
Revised Manuscript: June 26, 2008
Manuscript Accepted: June 29, 2008
Published: July 23, 2008

Suchun Feng, Ou Xu, Shaohua Lu, Xiangqiao Mao, Tigang Ning, and Shuisheng Jian, "Single-polarization, switchable dual-wavelength erbium-doped fiber laser with two polarization-maintaining fiber Bragg gratings," Opt. Express 16, 11830-11835 (2008)

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