Collection Of theses on high power laser and plasma physics, 2016, 14 (1): 4132, Published Online: Mar. 23, 2017
Noncritically phase-matched fourth-harmonic generation of Nd:glass lasers and design of final optics assembly
Abstract
The noncritically phase-matched (NCPM) fourth-harmonic generation (FHG) with partially deuterated dihydrogen phosphate (KD*P) crystal at an Nd:glass laser radiation wavelength of 1053.1 nm has been confirmed. NCPM FHG has been achieved in 70% and 65% deuterated KD*P crystal at the temperature of 17.7°C and 29.3°C, respectively. The angular acceptance of 70% and 65% deuterated KD*P crystals fixed at their NCPM temperature were measured, which were 53 and 55 mrad, respectively. The application of the NCPM FHG in a high-power laser facility for inertial confinement fusion is also discussed. Based on the theoretical analysis, the NCPM KD*P can be placed after the focus lens; thus, the laser-induced damage of a fused-silica lens at ultraviolet can be avoided.
XIUQING JIANG, LAILIN JI, DONG LIU, SHUNXING TANG, BAOQIANG ZHU, ZUNQI LIN. Noncritically phase-matched fourth-harmonic generation of Nd:glass lasers and design of final optics assembly[J]. Collection Of theses on high power laser and plasma physics, 2016, 14(1): 4132.