%0 Journal Article
%T Ultra-broadband optical parametric amplification based on pre-chirp controlling<br>基于预啁啾控制的极宽带光参量放大
%A Song Xiao-Zhong
%A Liu Hong-Jun
%A Wang Yi-Shan
%A Zhao Wei
%A <br>宋啸中
%A 刘红军
%A 王屹山
%A 赵 卫
%J 物理学报
%D 2008
%I 
%X For optical parametric amplification with broadband pump coming from the second harmonic of an amplified Ti:sapphire laser syetem, a novel ultra-broad bandwidth phase-matching approach is investigated. The results show that an approximately 400nm phase-matching bandwidth can be obtained by using a 10nm pump bandwidth. Moreover, the phase-matching bandwidth can reach 600nm when the pump bandwidth attains 20nm. In order to obtain temporal overlap of phase-matched spectral components, a linear chirp in the pump requires a quadratic chirp in signal. The photonic crystal fiber with a zero-dispersion wavelength of 800nm generates a supercontinuum with a quadratic chirp. The broadband pump pulse is stretched to a linear chirped pulse by a prism pairs. Calculations concerning the appropriate length of fiber and prism sequence to be inserted in optical path for the pre-chirp controlling were performed, the results of which provide a theoretical basis for implementing the ultra-broadband optical parametric amplification.
%K chirp
%K ultra-broadband phase-matching
%K optical parametric amplification
%K photonic crystal fiber<br>啁啾，
%K 极宽带相位匹配，
%K 光参量放大，
%K 光子晶体光纤
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=639C0CB7DD73A62E9154AD8C12C4EAEF&yid=67289AFF6305E306&vid=11B4E5CC8CDD3201&iid=CA4FD0336C81A37A&sid=273ADA1BCEFE8C00&eid=CAA7BAE04CB631A1&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=17