2ND-HARMONIC GENERATION OF AMPLIFIED FEMTOSECOND TI SAPPHIRE LASER-PULSES

被引：49

作者：

KRYLOV, V ^{[1
]}

REBANE, A ^{[1
]}

KALINTSEV, AG ^{[1
]}

SCHWOERER, H ^{[1
]}

WILD, UP ^{[1
]}

机构：

[1] SI VAVILOV STATE OPT INST,ST PETERSBURG 199034,RUSSIA

来源：

OPTICS LETTERS | 1995年 / 20卷 / 02期

关键词：

Amplified femtosecond laser pulses - KDP crystals - Nonlinear coupling coefficients - Nonlinear crystals - Second harmonic generation efficiency;

D O I：

10.1364/OL.20.000198

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study theoretically and experimentally second-harmonic generation (SHG) of 150-fs-duration amplified Ti:sapphire laser pulses at a wavelength of 780 nm in the nonlinear crystal KDP of different lengths and at different power densities as high as 150 GW cm-2. The experimentally observed SHG conversion efficiency does not exceed 50%. It is shown theoretically that one possible process limiting the SHG efficiency at low as well as at high intensities is the modulation of the phase of the fundamental wave. In addition, continuum generation is observed at high intensities and can decrease the SHG efficiency.

引用

页码：198 / 200

页数：3

共 6 条

[1] FEMTOSECOND ULTRAVIOLET PULSE GENERATION IN BETA-BAB2O4 [J].