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Bidirectional passively mode-locked soliton fiber laser with a four-port circulator

机译:带四端口环行器的双向无源锁模孤子光纤激光器

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摘要

We present an all-fiber bidirectional passively mode-locked soliton laser with what we believe is a novel cavity configuration. Using a four-port circulator, we incorporate two different semiconductor saturable absorber mirrors (SESAMs) into the laser cavity, which enables bidirectional mode locking. The laser allows the generation of two independent countercirculating mode-locked pulse trains, each with an individual fundamental repetition rate that can be adjusted by varying the SESAM pigtail length. Two countercirculating pulse trains with repetition rates of 21.3 and 15.2 MHz are obtained simultaneously. By controlling the intracavity loss imposed on these two pulse trains, either one of the two pulse trains can be switched on or off. The bidirectional operation with other repetition rates is also demonstrated.
机译:我们提出了一种全光纤双向无源锁模孤子激光器,我们认为这是一种新颖的腔结构。使用四端口环行器,我们将两个不同的半导体可饱和吸收镜(SESAM)合并到激光腔中,从而实现了双向模式锁定。激光可以产生两个独立的反循环锁模脉冲序列,每个脉冲序列具有各自的基本重复率,可以通过改变SESAM尾纤长度来进行调整。同时获得两个重复频率分别为21.3和15.2 MHz的反向循环脉冲序列。通过控制施加在这两个脉冲序列上的腔内损耗,可以打开或关闭两个脉冲序列之一。还演示了具有其他重复率的双向操作。

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