Diode end-pumped self-Q-switched and mode-locked Nd,Cr:YAG/KTP green laser

• 来源期刊: 中国物理（英文版）
• 关键词: frequency doubling Nd Cr:YAG crystal self-Q-switched and mode-locked pulses green laser
• 年，卷（期）: 2006,（7）
• 页码范围: 1522-1525
• 页数: 4页
• 语种: 英文

摘要

We first experimentally demonstrate a laser-diode end-pumped self-Q-switched and mode-locked Nd,Cr:YAG green laser with a KTP crystal as the intra- cavity frequency doubler. The device produces an average output power of 680 mW at 532 nm. The corresponding pulse width of the Q-switched envelope of the green laser is 170 ± 20 ns. The mode-locked pulses have a repetition rate of approximately 183 MHz and the average pulse duration is estimated to be around sub-nanosecond. It is found that the intra-cavity frequency doubling greatly improves the modulation depth and stability of the mode-locked pulses within the Q-switched envelope.