Open AccessEfficient second harmonic generation of femtosecond laser at 1 �m
Author(s) -
Heyuan Zhu,
Tao Wang,
Wanguo Zheng,
Peng Yuan,
Liejia Qian,
Dianyuan Fan
Publication year - 2004
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.002150
Subject(s) - femtosecond , optics , second harmonic generation , phase matching , materials science , laser , high harmonic generation , nonlinear optics , energy conversion efficiency , optoelectronics , physics
By using spectrally noncritical phase-matching in a partially deuterated KDP around its retracing point of phase-matching, we have experimentally and numerically investigated the characteristics of second-harmonic generation (SHG) with femtosecond laser at 1 microm for the first time. This phase-matching configuration can support efficient SHG over 20nm bandwidth of the fundamental laser at 1 microm in a 10-mm-long crystal. Efficiency of harmonic conversion as high as 55% has been demonstrated.