Quantum-Defect-Limited Operation of Diode-Pumped Yb:YAG Laser at Low Temperature
2004; Institute of Physics; Volume: 43; Issue: 4A Linguagem: Inglês
10.1143/jjap.43.l496
ISSN1347-4065
AutoresTakahiro Shoji, Shigeki Tokita, Junji Kawanaka, Masayuki Fujita, Yasukazu Izawa,
Tópico(s)Photorefractive and Nonlinear Optics
ResumoWe have demonstrated a quantum-defect-limited operation in a diode-pumped Yb:YAG oscillator at low temperature. The highest slope efficiency of 90% at the crystal temperature of 70 K was obtained, which was close to the quantum efficiency of 91.2%. An optical-to-optical efficiency and a laser gain were 74% and 8 cm -1 , respectively at a low pump intensity of 2.3 kW/cm 2 .
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