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Proceedings Paper

Generating kW laser light at 532 nm via second harmonic generation of a high power Yb-doped fiber amplifier
Author(s): Peyman Ahmadi; Daniel Creeden; Daniel Aschaffenburg; Vadim Mokan; Mitchell Underwood; Andrea Caprara; Qi-Ze Shu; Luis Spinelli; John Minelly; Ivaylo Nikolov
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Paper Abstract

We present the development of a high-power laser source operating at 532 nm produced by frequency doubling a Ybdoped 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.

Paper Details

Date Published: 2 March 2020
PDF: 6 pages
Proc. SPIE 11264, Nonlinear Frequency Generation and Conversion: Materials and Devices XIX, 1126414 (2 March 2020); doi: 10.1117/12.2546377
Show Author Affiliations
Peyman Ahmadi, Coherent | Nufern (United States)
Daniel Creeden, Coherent | Nufern (United States)
Daniel Aschaffenburg, Coherent | Nufern (United States)
Vadim Mokan, Coherent | Nufern (United States)
Mitchell Underwood, Coherent | Nufern (United States)
Andrea Caprara, Coherent | Nufern (United States)
Qi-Ze Shu, Coherent | Nufern (United States)
Luis Spinelli, Coherent | Nufern (United States)
John Minelly, Coherent | Nufern (United States)
Ivaylo Nikolov, Coherent | Nufern (United States)

Published in SPIE Proceedings Vol. 11264:
Nonlinear Frequency Generation and Conversion: Materials and Devices XIX
Peter G. Schunemann; Kenneth L. Schepler, Editor(s)

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