高亮度1908nm掺铥光纤激光器，功率缩放到>75W

Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering Pub Date : 2022-07-28 DOI:10.18038/estubtda.1072801

S. K. Kalyoncu

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引用次数: 0

摘要

本文研究了单片二极管泵浦掺铥光纤激光器作为Ho-YAG系统的泵浦源。通过优化掺光纤长度和腔体参数，实现了高光对光效率和对放大自发发射(ASE)诱导的寄生激光的鲁棒性。实验结果表明，采用10/130 μm掺杂双包层光纤制备的1907.7 nm光纤激光器输出功率为79 W，具有较高的亮度和辐射密度。激光腔的斜率效率为~55%，ASE抑制> 40 dB，近衍射限制光束质量为M2~1.07。

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HIGH BRIGHTNESS 1908nm TM-DOPED FIBER LASER WITH POWER SCALING TO >75W

In this paper, we have studied monolithic diode-pumped Tm-doped fiber laser to be used as a pump source for Ho-YAG systems. The cavity is designed to achieve high optical-to-optical efficiency and robustness against amplified spontaneous emission (ASE) induced parasitic lasing via optimizing the doped fiber length and cavity parameters. Experimentally, we have demonstrated 1907.7 nm fiber laser with an output power of 79 W from 10/130 μm Tm-doped double clad fiber, enabling high brightness and radiance density as well. The laser cavity has a slope efficiency of ~55%, ASE suppression of > 40 dB and a near-diffraction-limited beam quality of M2~1.07.

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Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering

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