Broadband laser chaos generation using a quantum cascade laser with optical feedback
Chaojie Chen, Zhiwei Jia, Yuxiang Lv, Pu Li, Bingjie Xu, Yuncai Wang
Abstract
We propose a method to generate broadband laser chaos using a quantum cascade laser (QCL). Through numerical simulation, we give the evidence that the QCL with optical feedback can route to chaos through the quasi-periodic path. Furthermore, we investigate the influence of the feedback intensity and the bias current on the chaos bandwidth. Final results demonstrate that the chaos bandwidth can headily reach 43.1 GHz due to the lack of relaxation oscillation phenomena in QCLs.
Topics & Concepts
CascadeOpticsBandwidth (computing)LaserBroadbandQuantum cascade laserPhysicsSemiconductor laser theoryQuantumDistributed feedback laserOptical pathCHAOS (operating system)Optical chaosFree-space optical communicationOscillation (cell signaling)Computer scienceTelecommunicationsQuantum mechanicsBiologyGeneticsComputer securityChemistryChromatographySemiconductor Lasers and Optical DevicesPlant and animal studiesAdvanced Fiber Laser Technologies