Dual-rod Yb: YAG laser for high-power and high-brightness applications
Conference
·
OSTI ID:756836
The authors describe a diode-pumped Yb:YAG laser producing 1,080 W cw with 27.5% optical-optical efficiency and 532 W Q-switched with M{sup 2} = 2.2 and 17% optical-optical efficiency. The laser uses two composite Yb:YAG rods separated by a 90 degree quartz rotator for bifocusing compensation. A microlensed diode array end-pumps each rod using a hollow lens duct for pump delivery. By changing resonator parameters, they can adjust the fundamental mode size and the output beam quality. Using a flattened gaussian intensity profile to calculate the mode fill efficiency and clipping losses, the authors compare experimental data to modeled output power vs beam quality.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE Office of Defense Programs (DP) (US)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 756836
- Report Number(s):
- UCRL-JC-135925; YN0100000; YN0100000; TRN: AH200025%%50
- Resource Relation:
- Conference: Fifteenth Topical Meeting of the Advanced Solid-State Lasers, Davos (CH), 02/13/2000--02/16/2000; Other Information: PBD: 13 Mar 2000
- Country of Publication:
- United States
- Language:
- English
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