Open AccessGroup velocity matching in femtosecond optical parametric amplification of the KBe2BO3F2
Author(s) -
Ma Jing,
Ying Liu
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.4697
Subject(s) - femtosecond , optical parametric amplifier , optics , parametric statistics , phase matching , group velocity , bandwidth (computing) , physics , pulse (music) , signal (programming language) , materials science , laser , optical amplifier , telecommunications , computer science , mathematics , statistics , detector , programming language
In this paper a method is presented for the first time, witch can match completely group velocities of three pulses in femtosecond optical parametric amplification OPA of the KBe2BO3F2 KBBF crystal. We combine noncollinear configuration with tilting pulse front of pump, and collinear configuration with tilting pulse front of pump and signal, in type-Ⅰ and type-Ⅱ phase matching configurations respectively, to realize complete match of group velocities of three pulses in maximal parametric bandwidth of the femtosecond OPA, thus can obtain parametric pulses with higher gain and shorter duration.