Extreme events in quantum cascade lasers Download： 721次
We demonstrate experimentally that mid-infrared quantum cascade lasers (QCLs) operating under external optical feedback exhibit extreme pulses. These events can be triggered by adding small amplitude periodic modulation, with the highest success rate for the case of a pulse-up excitation. These findings broaden the potential applications for QCLs, which have already been proven to be a semiconductor laser of interest for spectroscopic applications and countermeasure systems. The ability to trigger extreme events paves the way for optical neuron-like systems where information propagates as a result of high intensity bursts.
Olivier Spitz, Jiagui Wu, Andreas Herdt, Grégory Maisons, Mathieu Carras, Wolfgang Elsäßer, Chee-Wei Wong, Frédéric Grillot. Extreme events in quantum cascade lasers[J]. Advanced Photonics, 2020, 2(6): 066001.