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21 February 2007 2-kW average power phase-conjugate master oscillator power amplifier
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We have demonstrated stable operation of a 2-kW Yb:YAG phase-conjugate master oscillator, power amplifier (PC-MOPA) laser system with a loop phase-conjugate mirror (LPCM). This is the first demonstration of a CW-input LPCM MOPA operating at a power greater than 1 kW with a nearly diffraction-limited output beam. The single-pass beam quality incident on the LPCM varied with the specific operating conditions, but it was typically ~ 20 times diffraction-limited (XDL). The measured beam quality with a MOPA output power of 1.65 kW was 1.3 XDL.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yuri A. Zakharenkov, Todd O. Clatterbuck, Vladimir V. Shkunov, A. A. Betin, Dave M. Filgas, Eric P. Ostby, Friedrich P. Strohkendl, D. A. Rockwell, and Rob S. Baltimore "2-kW average power phase-conjugate master oscillator power amplifier", Proc. SPIE 6454, High Energy/Average Power Lasers and Intense Beam Applications, 64540F (21 February 2007);

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