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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 8, Iss. 2 — Feb. 1, 2010
  • pp: 184–186

Linearly polarized operation of Yb-doped fiber laser by Brewster's angle-polished fiber end

Xia Liu, Songtao Du, Jun Zhou, Jingxing Dong, Yunrong Wei, Zhijun Yuan, Wei Wang, Zhouping Su, and Qihong Lou  »View Author Affiliations


Chinese Optics Letters, Vol. 8, Issue 2, pp. 184-186 (2010)


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Abstract

A new method to obtain linear polarization operation by Brewster's angle-polished fiber end is demonstrated. By using the special polarization operation technique together with introducing a narrow-linewidth fiber grating into the laser cavity, a cladding-pumped linear polarization and single-transverse-mode (M2<1.1) Yb-doped fiber laser with narrow linewidth whose full-width at half-maximm (FWHM) is less than 0.2 nm, is obtained in a simple configuration. The output power is up to 10 W which is continuouswave output at 1085 nm, and the slope eciency is 63% with respect to the coupled pump power and 75% with respect to the absorbed pump power, respectively. The measured 21-dB polarization extinction ratio does not degrade with the output power. The simplicity of such an approach is highly beneficial for a number of applications, including the use of a fiber laser for the nonlinear wavelength conversion (especially for the intracavity frequency doubling) and for the coherent and spectral beam combination.

© 2010 Chinese Optics Letters

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3615) Lasers and laser optics : Lasers, ytterbium

Citation
Xia Liu, Songtao Du, Jun Zhou, Jingxing Dong, Yunrong Wei, Zhijun Yuan, Wei Wang, Zhouping Su, and Qihong Lou, "Linearly polarized operation of Yb-doped fiber laser by Brewster's angle-polished fiber end," Chin. Opt. Lett. 8, 184-186 (2010)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-8-2-184

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