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A single-frequency Er3+ -doped ring-cavity silica fiber laser operating at 1610.06 nm based on cascaded single-mode-multimode-single-mode devices and sub-ring cavities was demonstrated. The laser presents maximum single-frequency output power of 31.6 mW with slope efficiency of 9% and laser linewidth of 2.8 kHz.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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