摘要
通过对泵浦光源半导体激光器(LD)的驱动电源进行正弦调制,实现了掺铒光纤激光器(EDFL)的同步泵浦锁模。在相应于谐波锁模、有理数谐波锁模条件下得到了稳定的脉冲输出。对重复频率544.431kHz的二次谐波锁模脉冲序列,脉冲宽度为420.4ns,占空比为1.0∶4.4,峰值功率为3.34mW;实验中还观察到了自调Q现象,脉冲序列的重复频率为18.25MHz,脉冲半宽度为8ns,占空比为1.0∶6.9,峰值功率为2.3mW。
A synchronously pumped mode-locked erbium-doped fiber laser (EDFL) was obtained when the pump semiconductor laser (LD) current is modulated sinusoidally at the appropriate frequency. Steady pulses were obtained on harmonic and rational harmonic mode-locked status. At the repetition rate of 544.431 kHz, the pulse width is 420.4 ns and the period is 1.85 MS, the peak power is 3.34 mW; self-Q-switched phenomenon was observed in our experiment, the repetition rate of the pulses is 544.431 kHz, the pulse width is 8 ns and the period is 54 s, the peak power is 2.3 mW. If the experiment condition is bettered, the results can be promoted considerably.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2004年第3期267-269,274,共4页
Journal of Optoelectronics·Laser
基金
国家自然科学基金资助项目(60137010)
天津科委重点基金资助项目(013800411)
