A 4.8-kW high-efficiency 1050-nm monolithic fiber laser amplifier employing a pump-sharing structure

• Published in: Frontiers in physics Vol. 11
• Main Authors: Meng, Xiangming, Li, Fengchang, Yang, Baolai, Ye, Yun, Chai, Junyu, Xi, Xiaoming, Wang, Peng, Wu, Hanshuo, Shi, Chen, Zhang, Hanwei, Wang, Xiaolin, Han, Kai
• Format: Journal Article
• Language: English
• Published: Frontiers Media S.A 18.09.2023
• Subjects: amplified spontaneous emission; high power; pump-sharing structure; short-wavelength fiber lasers; stimulated Raman scattering

The power scaling of ytterbium-doped fiber (YDF) lasers emitting at the wavelength range of 1030 nm–1060 nm has been limited by amplified spontaneous emission (ASE), stimulated Raman scattering (SRS) effect, and transverse mode instability (TMI). These effects pose challenges in achieving a high-out...