Open AccessBandwidth in qusai-phase-matched frequency doubling
Author(s) -
Ren Ai-Hong,
Zhengying Liu,
Rongzhu Zhang,
Jinglun Liu,
Nan Sun
Publication year - 2010
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.59.7050
Subject(s) - broadband , bandwidth (computing) , wavelength , crystal (programming language) , second harmonic generation , materials science , optics , phase (matter) , frequency conversion , harmonic , optoelectronics , physics , telecommunications , computer science , acoustics , laser , electrical engineering , quantum mechanics , programming language , engineering
Based on the theory of quasi-phase-matched frequency doubling, the condition to generate the broadband second-harmonic is investigated. We analyze the conversion performances of the high efficiency broadband second-harmonic for type-0 (e+e→e) and type-Ⅰ(o+o→e) quasi-phase-matchad cases in periodically poled LiNbO3 crystal and 7mol% periodically poled MgO:LiNbO3 crystal. The results show that the central wavelengths of the fundamental wave and the bandwidth shift toward short waves in periodically poled MgO:LiNbO3 crystal, and the wider bandwidth is obtained in the type-0 quasi-phase-matched case.