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

High-power single-polarization and single-transverse-mode fiber laser with an all-fiber cavity and fiber-grating stabilized spectrum

Chi-Hung Liu, Almantas Galvanauskas, Victor Khitrov, Bryce Samson, Upendra Manyam, Kanishka Tankala, David Machewirth, and Stefan Heinemann
Opt. Lett. 31(1) 17-19 (2006)

Diode-pumped 1.15 W linearly polarized single-frequency Yb³⁺-doped phosphate fiber laser

Shijie Fu, Xiushan Zhu, Jie Zong, Robert A. Norwood, and Nasser Peyghambarian
Opt. Express 29(19) 30637-30643 (2021)

Tapered Yb-doped fiber enabled monolithic high-power linearly polarized single-frequency laser

Long Huang, Wenchang Lai, Pengfei Ma, Jin Wang, Rongtao Su, Yanxing Ma, Can Li, Dong Zhi, and Pu Zhou
Opt. Lett. 45(14) 4001-4004 (2020)

A 100 W all-fiber linearly-polarized Yb-doped single-mode fiber laser at 1120 nm

Jianhua Wang, Jinmeng Hu, Lei Zhang, Xijia Gu, Jinbao Chen, and Yan Feng
Opt. Express 20(27) 28373-28378 (2012)

High-power linearly-polarized operation of a cladding-pumped Yb fibre laser using a volume Bragg grating for wavelength selection

P. Jelger, P. Wang, J. K. Sahu, F. Laurell, and W. A. Clarkson
Opt. Express 16(13) 9507-9512 (2008)