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- Title
High power and excellent beam quality rod Yb: YAG regenerative amplifier.
- Authors
Luo, Guangxin; Song, Jiajun; Peng, Yujie; Liu, Yinfei; Shen, Liya; Sun, Jianyu; Leng, Yuxin
- Abstract
This paper demonstrates a laser diode double-ended pumped Yb: YAG rod regenerative amplifier (RA) with an average power of 37 W, which substantially exceeds the performance of previously reported bulk Yb: YAG medium RAs. Compared to other bulk Yb: YAG medium RAs, we have introduced several enhancements in thermal management, such as employing a double-ended pump to reduce the temperature gradient inside the crystal, and the cooling efficiency is significantly enhanced by designed heat sink. As a result, the thermal effect is effectively suppressed. The system attains high average output power and power stability (RMS = 0.56%) at a pulse repetition rate of 400 kHz. In addition, the output beam maintains excellent quality even under varying high pump powers, demonstrating an M 2 consistently below 1.1.
- Subjects
HEAT sinks; Q-switched lasers; SEMICONDUCTOR lasers
- Publication
Applied Physics B: Lasers & Optics, 2024, Vol 130, Issue 6, p1
- ISSN
0946-2171
- Publication type
Article
- DOI
10.1007/s00340-024-08223-y