Open AccessExperimental investigation on temporal and spectral characteristics of femtosecond-scaled ultra-broadband Ti:sapphire oscillator
Author(s) -
Xudong Xie,
Qingyue Wang,
Zhuan Wang,
Weili Zhang,
Li Chai
Publication year - 2005
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.54.3159
Subject(s) - sapphire , femtosecond , broadband , materials science , bandwidth (computing) , pulse (music) , optics , broad band , ti:sapphire laser , physics , optoelectronics , laser , telecommunications , computer science , detector
In this letter, we systematically investigated the temporal and spectral characteristic of ultra-broad band Ti:sapphire oscillator in femtosecond regime. Pulse formation in temporal regime was observed while the spectral shape evolved fro m hyperbolic secant shape into multi-peak one and the bandwidth increased from 40 to 180nm. Experimental results showed that pulse shortening mainly occurred n ot at its bottom part but at its central section while the spectrum was broadene d, and at the same time the relative energy at the bottom part increased.