An all-fiber 10.9 W single-frequency one-stage linearly-polarized master-oscillator power amplifier (MOPA) laser at 1560 nm has been demonstrated. The laser linewidth is less than 3.5 kHz and the polarization-extinction ratio (PER) is greater than 24 dB. The measured signal-to-noise ratio (SNR) is higher than 70 dB and the optical-to-optical conversion efficiency is 29.5%. No obvious stimulated Brillouin scattering and the devastating effects of unwanted coupling light were observed.
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| http://dx.doi.org/10.1364/OE.21.012546 | DOI Listing |
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Micromachines (Basel)
June 2024
College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China.
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