材料科学
光学
放大器
包层(金属加工)
波导管
光电子学
激光束质量
光放大器
脉冲持续时间
平面的
光纤激光器
激光器
物理
冶金
计算机图形学(图像)
波长
CMOS芯片
计算机科学
激光束
作者
Junia Nomura,Kenichi Hirosawa,Takayuki Yanagisawa,Nobuo Ohata,Shunsuke Imamura,Daisuke Sakaizawa,Naoya Tomii
出处
期刊:Optics Letters
[The Optical Society]
日期:2023-02-24
卷期号:48 (7): 1758-1758
被引量:7
摘要
We demonstrate a master oscillator power amplifier (MOPA) system that emits single-frequency high-energy optical pulses at 1540 nm using an Er,Yb:glass planar waveguide amplifier and a large mode area Er-doped fiber amplifier. A double under-cladding and a 50-µm-thick core structure are employed for the planar waveguide amplifier to increase the output energy without degrading the beam quality. A pulse energy of 45.2 mJ with a peak power of 27 kW is generated at a pulse repetition rate of 150 Hz with a pulse duration of 1.7 µs. Moreover, the beam quality factor M2 of the output beam is 1.84 at the highest pulse energy thanks to its waveguide structure.
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