Highly efficient 68-W green-beam generation by use of an intracavity frequency-doubled diode side-pumped Q-switched Nd:YAG rod laser

摘要

An intracavity frequency-doubled diode side-pumped Nd:YAG laser was developed by use of an advanced cavity configuration and a diffusive close-coupled side-pumping design. A maximum green power of 68 W was generated at a 20-kHz repetition rate with 18.4% optical-to-optical conversion efficiency and 7.1% electrical-to-optical conversion efficiency. #1998 Optical Society of America OCIS codes: 140.3480, 140.3540, 140.2620, 140.2560.