S.A.Abrosimov, S.G.Grechin, D.G.Kochiev, N.Yu.Maklakova, V.N.Semenenko
"Second harmonic generation of microsecond laser monopulses in KTP crystal"
Quantum Electronics (Rus.), 2001, v.31, N7, p.643-646

      The second harmonic 90о-phase-matching generation in KTP crystal for YAP:Nd3+ microsecond monopulse laser radiation is realized. Efficiency of conversion was about 29%. The temperature of 90о-phase matching is about 54о С. The surface damage thresholds were 107+/-11 J/cm2 for uncoated crystals and 40+/-4 J/cm2 for coated.