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18 March 2024 Mid-infrared conventional solitons and soliton molecules in a polarization-maintaining fluoride fiber oscillator
Qinghui Zeng, Linpeng Yu, Peiguang Yan, Jinzhang Wang, Qitao Lue, Chunyu Guo, Shuangchen Ruan
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Proceedings Volume 13104, Advanced Fiber Laser Conference (AFL2023); 131041L (2024) https://doi.org/10.1117/12.3022576
Event: Advanced Fiber Laser Conference (AFL2023), 2023, Shenzhen, China
Abstract
Mid-infrared conventional solitons and soliton molecules are generated in a polarization-maintaining erbium-doped fluoride fiber oscillator, where a semiconductor saturable absorber is used as the mode locker and a polarization beam splitter is employed for getting linearly polarized output pulses. By rotating the half-wave plate in front of the polarization beam splitter to change the output coupling ratio, the system is switchable between conventional solitons and soliton molecules. conventional solitons with a pulse duration of 120 ps, a maximum average power of 248 mW, and a repetition rate of 44.5 MHz are obtained when the oscillator operates in the single-pulse mode-locked state. By decreasing the output coupling ratio, the operating regime of the oscillator switches to the soliton-molecule mode-locked state, in which soliton-triplets equally distributed at a repetition rate of 44.5 MHz with a signal-to-noise ratio of 78 dB and a temporal separation of 60 ps are obtained. Our work offers a scheme to realize switchable operations between the conventional soliton and the soliton molecule in the mid-infrared polarization-maintaining mode-locked fiber laser.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Qinghui Zeng, Linpeng Yu, Peiguang Yan, Jinzhang Wang, Qitao Lue, Chunyu Guo, and Shuangchen Ruan "Mid-infrared conventional solitons and soliton molecules in a polarization-maintaining fluoride fiber oscillator", Proc. SPIE 13104, Advanced Fiber Laser Conference (AFL2023), 131041L (18 March 2024); https://doi.org/10.1117/12.3022576
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KEYWORDS
Solitons
Mode locking
Molecules
Oscillators
Fluoride
Fiber lasers
Mid infrared
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