Efficient Diode-Pumped Passively Q-Switched Nd:GdVO4 Lasers

• 来源期刊: 中国物理快报（英文版）
• 学科: 物理学
• 年，卷（期）: 2002,（12）
• 页码范围: 1808-1810
• 页数: 3页
• 分类号: O4
• 语种: 英文

摘要

An efficient diode-pumped Nd:GdVO4 laser passively Q-switched by a Cr4+ :YAG has been developed as a saturable absorber. A KTP crystal is used for the extra-cavity second-harmonic generation and a BBO crystal for the sum frequency mixing. The green output power is 172mW at incident pump power of 8 W. The ultraviolet (UV) output power is measured to be 20mW at the same pump power. The peak power of the UV laser is 143 W with the pulse repetition rate of 14 kHz and pulse width of 10 ns.