材料科学
光学
光纤激光器
激光器
激光泵浦
拉曼散射
光电子学
双包层光纤
激光功率缩放
放大器
布里渊散射
光纤
波长
色散位移光纤
光纤传感器
拉曼光谱
物理
CMOS芯片
作者
Weixuan Lin,Marie-Hélène Bussières-Hersir,Mathieu Auger,André Vincelette,Martin Rochette
出处
期刊:Applied Optics
[The Optical Society]
日期:2023-05-17
卷期号:62 (17): 4490-4490
被引量:2
摘要
We report a single-end forward-pumped fiber laser with a record high output power of 3 kW. The laser is assembled exclusively from commercially widespread components such as the Yb-doped fiber with core/cladding diameter of 20/400 µm, pump laser diodes at an emission wavelength of 915 nm, and a signal and pump fiber combiner that serves as the pump recycler. The record high power arises from the combination of the 915 nm pumping and pump recycler with an effective reflectivity of 78%, increasing simultaneously the thresholds for stimulated Raman scattering and transverse mode instability (TMI). The length of the oscillator was also varied experimentally from 20 m to 5 m, showing a contrast of up to 19% in the TMI threshold. This shows the importance of accurately partitioning the Yb-doped fiber length in between the oscillator and amplifier sections to minimize the impact of TMI.
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