FEMTOSECOND TRAVELING-WAVE PARAMETRIC GENERATION WITH LITHIUM TRIBORATE

被引:17
作者
BANFI, GP
DANIELIUS, R
PISKARSKAS, A
DITRAPANI, P
FOGGI, P
RIGHINI, R
机构
[1] VILNIUS UNIV,LASER RES CTR,VILNIUS 2054,LITHUANIA
[2] UNIV MILAN,DEPT PHYS,I-22100 COMO,ITALY
[3] EUROPEAN LAB NONLINEAR SPECT,I-50125 FLORENCE,ITALY
关键词
D O I
10.1364/OL.18.001633
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Ultrashort pulses, of the same time duration as the pump pulse, have been obtained with a traveling-wave parametric generator employing a temperature-tuned lithium triborate crystal in noncritical phase matching. Starting from a 190-fs pulse at 0.6 mum generated by a dye laser, we achieved an overall conversion efficiency of 10-15% in the tuning range 0.85-0.97 mum (and the corresponding range of 1.6-2.1 mum) with a pump energy of only 30 muJ. The easy operation in the femtosecond regime and the minimal energy requirements that we found are due to the small group-velocity mismatch of lithium triborate at this pump wavelength and to the absence of walk-off.
引用
收藏
页码:1633 / 1635
页数:3
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