光学学报, 2009, 29 (11): 3121, 网络出版: 2009-11-16
基于金属/介质混合反射镜的高调制深度半导体可饱和吸收镜锁模的飞秒光纤激光器
Femtosecond Erbium-Doped Fiber Laser Mode-Locked with a High Modulation Depth SESAM
摘要
介绍了一种新型半导体可饱和吸收镜(SESAM)的原理与特性,并用它来实现掺铒光纤激光器的锁模飞秒脉冲的生成。这种新型宽带SESAM调制深度可以达到20％,用在1.5 μm波段的环形腔掺铒光纤激光器里,实现自启动锁模。锁模光谱以1559 nm为中心,半峰全宽为9 nm,锁模激光脉冲串重复频率为25.6 MHz,输出功率14 mW,自相关仪测得脉宽为170 fs。
Abstract
We fabricated a 20% modulation depth semiconductor saturable absorber mirror on a metal/dielectric mirror base,for ease of the growth restrictions.Using such a saturable absorber mirror,we obtained self-starting mode-locking in a ring erbium-doped fiber laser.The output pulse width was 170 fs and the repetition rate was 25.6 MHz.
蔡岳, 杨暐建, 周春, 张广晓, 张梦, 张志刚. 基于金属/介质混合反射镜的高调制深度半导体可饱和吸收镜锁模的飞秒光纤激光器[J]. 光学学报, 2009, 29(11): 3121. Cai Yue, Yang Weijian, Zhou Chun, Zhang Guangxiao, Zhang Meng, Zhang Zhigang. Femtosecond Erbium-Doped Fiber Laser Mode-Locked with a High Modulation Depth SESAM[J]. Acta Optica Sinica, 2009, 29(11): 3121.
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