Generating kW Laser Light at 532 nm via Second Harmonic Generation of a High Power Yb-Doped Fiber Amplifier

被引:15
作者
Ahmadi, Peyman [1 ]
Creeden, Daniel [1 ]
Aschaffenburg, Daniel [1 ]
Mokan, Vadim [1 ]
Underwood, Mitchell
Caprara, Andrea [2 ]
Shu, Qi-Ze [2 ]
Spinelli, Luis [2 ]
Minelly, John [2 ]
Nikolov, Ivaylo [3 ]
机构
[1] Coherent Nufern, 7 Airport Pk Rd, East Granby, CT 06026 USA
[2] 5100 Patrick Henry Dr, Santa Clara, CA 95054 USA
[3] 200 Int Dr, Mt Olive, NJ 07828 USA
来源
NONLINEAR FREQUENCY GENERATION AND CONVERSION: MATERIALS AND DEVICES XIX | 2020年 / 11264卷
关键词
Second Harmonic Generation; fiber amplifier; non-linear; 532; nm; CONTINUOUS-WAVE;
D O I
10.1117/12.2546377
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We present the development of a high-power laser source operating at 532 nm produced by frequency doubling a Yb-doped fiber amplifier. The fiber amplifier has a multistage design, and uses large mode area Yb-doped fibers as the gain medium to produce > 2 kW of laser power at 1064 nm. The amplifier design is optimized to reduce non-linear effects, and operates at linewidths as narrow as 45 GHz. By focusing the fiber amplifier output into an LBO crystal, more than 1 kW of 532 nm light is produced. Single pass conversion efficiencies as high as 54% are achieved providing a unique combination of high power and high quality 532 nm laser source. The 532 nm laser is fiber coupled, making it an ideal source for industrial applications.
引用
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页数:6
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