Compact and tunable mid-infrared source based on a 2μm dual-wavelength KTiOPO4 intracavity optical parametric oscillator

• 来源期刊: 中国物理B（英文版）
• 关键词: mid-infrared radiation difference frequency generation optical parametric oscillator phase matching scheme
• 年，卷（期）: 2010,（11）
• 页码范围: 436-440
• 页数: 5页
• 语种: 英文

摘要

Using a double resonant KTiOPO4(KTP)intracavity optical parametric oscillator operating at degenerated point of 2 μm,we demonstrate a unique mid-infrared source based on difference frequency generation in GaSe crystal.The output tuning range is 8.42-19.52 μm,and a peak power of 834 W for type-Ⅰ phase matching scheme and 730 W for type-Ⅱ phase matching scheme are achieved.Experimental results show that this oscillator is a good alternative to the generator of a compact and tabletop mid-infrared radiation with a widely tunable range.