EFFICIENT GENERATION OF ULTRASHORT, WAVELENGTH-TUNABLE INFRARED PULSES

被引:35
作者
CHEUNG, EC
LIU, JM
机构
[1] Department of Electrical Engineering, University of California, Los Angeles, CA
关键词
D O I
10.1364/JOSAB.8.001491
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A theory for a cw synchronously pumped, singly resonant optical parametric oscillator with Gaussian beams is presented. It accounts for most of the spatial and temporal effects of the interacting beams in the nonlinear crystal. The optimum design criteria for the focus tightness of the signal and the pump beams and the length of the crystal are given. We consider various nonlinear crystals with two differently mode-locked Nd:YLF sources used as pumps to generate wavelengths from 1 to 13-mu-m. Results from numerical simulations indicate that with the proper design of the optical parametric oscillator it is possible to obtain energy conversion efficiencies from the pump to the signal and the idler of approximately 70% while maintaining signal-pulse durations shorter than the pump-pulse duration.
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页码:1491 / 1506
页数:16
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