摘要
提出了一种基于商用化的铌酸锂调制器产生超短光脉冲的方法。直流光依次经过相位调制器和强度调制器调制,利用色散补偿光纤(DCF)和梳状色散光纤链(CDPF)对调制产生的光脉冲分别进行啁啾补偿、非线性压缩。压缩后的光脉冲注入高非线性光纤(HNLF),利用其自相位调制效应(SPM)展开脉冲光谱后滤波,可以有效地消除光脉冲的基座,实现光脉冲的整形。获得了10 GHz的1.8 ps无基座近变换极限光脉冲。
A kind of ultra-short optical pulse source based on commercial LiNbO3 modulators is proposed. After phase and intensity hybrid modulation of a continuous-wave light, a dispersion-compensating fiber （DCF） and a comb-like dispersion profiled fiber （CDPF） were used for linear chirp compensation and nonlinear pulse compression of the generated optical pulse, respectively. The compressed pulse was then injected to a highly-nonlinear fiber （HNLF） and the pulse spectrum was broadened by self-phase modulation （SPM）. After filtering with an optical band-pass filter （OBPF）, an ultra-short optical pulse without any pedestal was generated. A 1.8 ps transform-limited ultrashort pulse with no pedestal is obtained.
出处
《半导体光电》
EI
CAS
CSCD
北大核心
2007年第6期851-854,共4页
Semiconductor Optoelectronics
基金
国家自然科学基金资助项目(60577033)
高等学校博士点基金资助项目(20050003010)
北京邮电大学教育部重点实验室开放基金项目
关键词
光纤通信
光脉冲源
铌酸锂调制器
optical fiber communication
optical pulse source
LiNbO3 modulator
