Current status of the development of the Kumgang laser

The Kumgang laser, a 4 kW (4 x 0.1 J 10 kHz / 8.5 ns) coherent beam combination laser using self-controlled stimulated Brillouin scattering phase conjugation mirrors (SBS-PCMs), is being developed. The front-end (FE) and the pre-amplifier (PA) are completed. The FE produces pulse energy of 0.51 mJ a...

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Bibliographic Details
Published inOptical materials express Vol. 4; no. 12; pp. 2551 - 2558
Main Authors Kong, Hong Jin, Park, Sangwoo, Cha, Seongwoo, Ahn, Heekyung, Lee, Hwihyeong, Oh, Jungsuk, Lee, Bong Ju, Choi, Soungwoong, Kim, Jom Sool
Format Journal Article
LanguageEnglish
Published 01.12.2014
Subjects
Amplification
Beams (radiation)
Coherent scattering
Laser beams
Lasers
Phase conjugation
Repetition
Scattering
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Summary:The Kumgang laser, a 4 kW (4 x 0.1 J 10 kHz / 8.5 ns) coherent beam combination laser using self-controlled stimulated Brillouin scattering phase conjugation mirrors (SBS-PCMs), is being developed. The front-end (FE) and the pre-amplifier (PA) are completed. The FE produces pulse energy of 0.51 mJ and a pulse width of 8.5 ns with a 10 kHz repetition rate (0.51 mJ 10 kHz / 8.5 ns) and a 95 MHz linewidth. The PA amplifies up to 200 W (20 mJ 10 kHz / 8.5 ns) with an input power 5.1 W.
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ISSN:2159-3930
2159-3930
DOI:10.1364/OME.4.002551