Open AccessPeriodic linear chirped pulse generation based on direct phase modulation
Author(s) -
Tian Xiao-Cheng,
Shiping Zhan,
Zhihua Huang,
Hungyen Lin,
Jianjun Wang,
Rui Zhang,
Ding Xu,
Yongliang Zhang,
Na Zhu
Publication year - 2013
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.62.104216
Subject(s) - optics , jitter , bandwidth limited pulse , ultrashort pulse , phase modulation , modulation (music) , self phase modulation , dispersion (optics) , physics , bandwidth (computing) , pulse (music) , materials science , laser , nonlinear optics , phase noise , telecommunications , computer science , acoustics , detector
A new method of generating periodic linear chirped pulse is proposed, and a 0.52 nm bandwidth periodic chirped pulse is generated. Numerical simulation shows that the gain saturation, group velocity dispersion and synchronization jitter have great influences on chirped pulse; and self-phase modulation has little influence since the peak power stays at a low level. The experimental results indicate that the polarization mode dispersion will lead to a great intensity modulation, and the amplified spontaneous emission will break the light stability, which leads to the fewer round-trips of light. Research shows that the direct phase modulation is a novel method of generating periodic linear chirped pulse, which could be used for smoothing the spectral dispersion.