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公开(公告)号:US06834134B2
公开(公告)日:2004-12-21
申请号:US09816937
申请日:2001-03-23
申请人: James F. Brennan, III , Patrick C. Chou , Harry L. T. Lee , Rajeev J. Ram , Hermann A. Haus , Erich P. Ippen
发明人: James F. Brennan, III , Patrick C. Chou , Harry L. T. Lee , Rajeev J. Ram , Hermann A. Haus , Erich P. Ippen
IPC分类号: G02B634
CPC分类号: H01S5/0622 , G02B6/2932 , H01S5/1212 , H01S5/146
摘要: A method and apparatus are provided for generating short (e.g., picosecond) pulses using a 2 section 1553 nm DBR laser without gain switching nor external modulation. The center wavelength of the DBR section is modulated at 0.5 GHz to generate a constant amplitude frequency modulated optical wave Large group velocity dispersion is then applied with a chirped fiber Bragg grating to convert the FM signal to a pulse stream.
摘要翻译: 提供了一种使用2部分1553nm DBR激光器在没有增益切换或外部调制的情况下产生短(例如,皮秒)脉冲的方法和装置。 DBR部分的中心波长被调制在0.5GHz,以产生恒定幅度的调频光波,然后用啁啾光纤布拉格光栅施加大群速度色散,以将FM信号转换成脉冲流。