Wideband chaotic tri-mode microlasers with optical feedback
Ya-Li Li, Chun-Guang Ma, Jin-Long Xiao, Ting Wang, Ji-Liang Wu, Yue-De Yang, Yong-Zhen Huang
Abstract
A tri-mode micro-square laser under optical feedback is proposed and demonstrated to generate chaos with the broadband flat microwave spectrum. By adjusting lasing mode intensities, frequency intervals, and optical feedback strength, we can enhance the chaotic bandwidth significantly. The existence of two mode-beating peaks makes the flat bandwidth much larger than the relaxation oscillation frequency. Effective bandwidth of 35.3 GHz is experimentally achieved with the flatness of 8.3 dB from the chaotic output spectrum of the tri-mode mode laser under optical feedback.
Topics & Concepts
OpticsPhysicsBandwidth (computing)WidebandLasing thresholdBroadbandChaoticLaserSemiconductor laser theoryMicrowaveOscillation (cell signaling)Optical communicationSingle-mode optical fiberOptical fiberFlatness (cosmology)Optical amplifierResonatorCoupled mode theoryOptical chaosMode-lockingMode couplingPhotonicsLaser diodeDistributed feedback laserNonlinear opticsChaos control and synchronizationSemiconductor Lasers and Optical DevicesNeural Networks and Reservoir Computing