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

Shijie Fu | Zendy; Xiushan Zhu | Zendy; Jie Zong | Zendy; Robert A. Norwood | Zendy; N. Peyghambarian | Zendy

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

Author(s) -

Shijie Fu,

Xiushan Zhu,

Jie Zong,

Robert A. Norwood,

N. Peyghambarian

Publication year - 2021

Publication title -

optics express

Language(s) - Polish

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.438787

Subject(s) - laser linewidth , materials science , optics , fiber laser , lasing threshold , laser , slope efficiency , fiber bragg grating , optoelectronics , physics

Compact and robust high-power single-frequency laser oscillators are in great demand for some specific applications where narrow-linewidth lasers with extremely low noise are required. In this paper, we report a single-mode-diode-pumped watt-level single-frequency Yb 3+ -doped phosphate fiber laser at 1050 nm based on an all-fiber distributed Bragg reflector cavity. A maximum output power of 1.15 W with a slope efficiency of 66% was achieved with 18-mm-long 8 wt.% Yb 3+ -doped phosphate fiber. Stable, single-longitudinal-mode lasing with a spectral linewidth of 9.6 kHz and polarization extinction ratio of ∼30 dB was obtained.

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