Thermo-optical pulsing in a microresonator filtered fiber-laser: a route towards all-optical control and synchronization.
Thermo-optical pulsing in a microresonator filtered fiber-laser: a route towards all-optical control and synchronization.
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DOI：
10.1364/oe.27.019242
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发表时间：
2019-03
期刊：
影响因子：
3.8
通讯作者：
M. Rowley;B. Wetzel;L. Di Lauro;J. S. T. Gongora;Hualong Bao;J. Silver;L. Del Bino;P. D. Haye;M. Peccianti;A. Pasquazi
中科院分区：
文献类型：
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作者：
M. Rowley;B. Wetzel;L. Di Lauro;J. S. T. Gongora;Hualong Bao;J. Silver;L. Del Bino;P. D. Haye;M. Peccianti;A. Pasquazi
我们报告的“慢”脉冲动力学的石英谐振器为基础的激光系统：通过嵌套一个高Q棒谐振器内的放大光纤腔，我们证明了微秒脉冲序列可以产生重复率在数百千赫。我们表明，这样的脉冲产生的周期相当于几百个激光腔往返通过在光纤腔中的增益动态和高Q谐振腔中的热光效应之间的相互作用。实验结果表明，通过调节放大光纤腔的参数，可以实现对脉冲特性的控制。我们的研究结果，证实了数值模拟，提供了有用的见解，在基于谐振腔的激光系统中，热光效应发挥积极作用的复杂的自组织现象的动力学发病。此外，我们还展示了如何通过外部反向传播的光场来探测甚至修改谐振器的热状态，从而暗示了全光控制和传感应用的新方法。
We report on 'slow' pulsing dynamics in a silica resonator-based laser system: by nesting a high-Q rod-resonator inside an amplifying fiber cavity, we demonstrate that trains of microsecond pulses can be generated with repetition rates in the hundreds of kilohertz. We show that such pulses are produced with a period equivalent to several hundreds of laser cavity roundtrips via the interaction between the gain dynamics in the fiber cavity and the thermo-optical effects in the high-Q resonator. Experiments reveal that the pulsing properties can be controlled by adjusting the amplifying fiber cavity parameters. Our results, confirmed by numerical simulations, provide useful insights on the dynamical onset of complex self-organization phenomena in resonator-based laser systems where thermo-optical effects play an active role. In addition, we show how the thermal state of the resonator can be probed and even modified by an external, counter-propagating optical field, thus hinting towards novel approaches for all-optical control and sensing applications.