【摘要】 利用被动锁模掺铒光纤激光器输出的重复频率 13.9MHz、中心波长 15 5 7.2 8nm的光脉冲作泵浦源 ,在 10 0m的色散位移光纤中产生总宽度达 4 88nm的超连续谱 ,不平坦度小于± 3.0dB ,利用法布里 珀罗滤波器获得 16 3路多波长脉冲 ,利用可调谐滤波器得到C波段内脉宽为 1.2～ 2 .0ps的近变换限超短光脉冲 分析了泵浦脉冲的功率、光纤长度等因素对SC光谱展宽的作用 ,并与色散平坦光纤和较长的色散位移光纤作了比较更多还原

【Abstract】 The total 20 dB bandwidth of 488 nm of supercontinuum (SC) with unevenness less than ±3.0 dB in a 100 m Dispersion-Shifted Fiber (DSF) with zero dispersion wavelength of 1543.0 nm was obtained in the experiment,whichwasbasedonthepassivemodelockedErbium-dopedfiberlaserwiththerepetitionrateof13.9MHz and the center wavelength of 1557.28 nm . Thus multi-wavelength pulses of 163 channels were picked up by a Fabry-Perot filter and short pulses with duration of 1.2～2.0 ps and a little frequency chirp by a tunable optical filter . The results of the experiment were compared with that of 4.57 km DSF and 4.28 km DFF and the data shows that the setup of 100 m DSF was a good idea.更多还原