Tunable continuous ultraviolet light source based on diode laser

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2012,（z1）
• 页码范围: 131-133
• 页数: 3页
• 语种: 英文
• DOI: 10.3788/COL201210.S11405

摘要

We report on extra cavity frequency doubling lasers for 266 nm with a compact,tunable extended cavity diode laser (ECDL) at 1064 nm.The ECDL injected into a tapered amplifier yields a power of 290 mW.In a first frequency-doubling stage,about 47-mW green ligbt at 532 nm is generated.Subsequent second-harmonic generation (SHG) employing a BBO crystal leads to about 30 μW of ultraviolet (UV) light at 266 nm.The tunable characteristic of this UV light source is discussed.The tuning span of quasi-phase matching of doubling cavity for 532 nm with PPKTP crystal is achieved with -3.5 nm by changing the temperature of PPKTP and is achieved with -1.186 nm by adjusting angle of PPKTP.