【摘要】 用反射率为 1 5dB掺镱光纤光栅作为反射器的掺镱光纤激光器 ,产生了稳定的纳秒级脉冲序列 ,脉冲宽度小于 5ns。激光器的阈值功率为 1 8mW ,在锁模工作区域内最大输出平均功率为 3mW ,脉冲重复频率为 2 5MHz,能量转换效率为 5 %。研究了产生自锁模的原因和特性更多还原

【Abstract】 A stable ns pulse has been generated from a self mode locking Yb doped fiber laser using Yb doped fiber Bragg grating with 15 dB reflectivity as a reflector, and the pulse width is less than 5 ns. The average output power about 3 mW and repetition rate of 25 MHz are obtained under stable mode locking condition. The laser threshold is 18 mW and energy convert efficiency is 5%. The cause and characteristics of the self mode locking fiber laser have been also investigated.更多还原