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Opt Lett. 2011 Sep 15;36(18):3708-10. doi: 10.1364/OL.36.003708.

400 mW ultrashort cavity low-noise single-frequency Yb³⁺-doped phosphate fiber laser.

Author information

1
State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication Materials, South China University of Technology, Guangzhou, China.

Abstract

A compact, low-noise, single-frequency fiber laser by using a newly developed Yb³⁺ heavily doped single-mode phosphate glass fiber has been demonstrated. Over 400 mW stable continuous wave single transverse and longitudinal mode laser at 1.06 μm was achieved from a 0.8 cm long active fiber. The measured slope efficiency and estimated quantum efficiency of laser emission are 72.7% and 93%, respectively. The signal-to-noise ratio is higher than 72 dB, and the linewidth of the fiber laser is less than 7 kHz, while the measured relative intensity noise is less than -130 dB/Hz at frequencies of over 1.5 MHz.

PMID:
21931440
DOI:
10.1364/OL.36.003708

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