We report an efficient diode-pumped high-power cryogenic regenerative amplifier operating at 1019 nm employing the c axis of Yb:YLF. Compared to usually selected 1017 transition a axis, c-axis line has three-fold higher emission cross section and still possesses full-width half-maximum (FWHM) 6.5 125 K. The chirped-pulse system is seeded by fiber front-end with energy 30 nJ stretched pulse widt...

Dynamic current and transition energy unbalance resulting from parameter mismatch between parallel MOSFET branches are mapped over wide operating ranges. Unbalance generator magnitudes are given for HEXFET Power MOSFET data sheet ant typical production batch extremes. Limit functions are defined for unbalance due to ON resistance, gain and threshold voltage mismatch. Q loci are utilized for map...