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Q-switched / CW pulse trains produced by mode-locked fiber laser

机译：由模式锁定光纤激光器产生的Q开关/ CW脉冲列表

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A mode-locked erbium-ytterbium fiber laser operating at 1550 nm using multiple quantum well (MQW) saturable absorbers was developed. The laser was constructed in a Fabry-Perot configuration using a fiber Bragg grating as a front reflector and a fiber chirped Bragg grating output as a back reflector of the laser cavity. The laser can either produce Q-switched or CW passively mode-locked pulse trains by simply changing the location of the saturable absorber with respect to a focal plane. The pulse train of laser Q-switching operates at an 85-KHz repetition rate when the position fo the absorber is near the focus. Peak power of the Q-switching pulses is about thirty times higher than for the CW mode locking which occurs whent he absorber is placed exactly at the focal plane. The CW passively modelocked pulse trains have a 19-MHz repetition rate with 2.6-mW average output power.
机译：开发了使用多量子阱（MQW）可饱和吸收剂在1550nm下操作的锁定erbium-ytterbium光纤激光器。使用纤维布拉格光栅作为前反射器的光纤布拉格光栅和作为激光腔的背反射器的光纤啁啾布拉格光栅输出。通过简单地改变饱和吸收体相对于焦平面的位置，激光可以通过简单地改变饱和吸收体的位置来产生Q开关或CW被动模式锁定的脉冲列车。当吸收器靠近焦点的位置时，激光Q切换的脉冲Q开关的脉冲训练器以85 kHz的重复率运行。 Q开关脉冲的峰值功率大约比CW模式锁定高出三十三个，该CW模式锁定发生在焦平面的吸收器中的作用。 CW被动模型脉冲列车具有19-MHz的重复率，平均输出功率为2.6 MW。

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