Generations of chaos-modulated pulses based on gain-switched semiconductor lasers subject to optical feedback for pulsed chaos lidar applications

Hanling Tsay^1*, Chinying Chen¹, Junda Chen¹, Hsinlin Ho¹, Chongyu Wang¹, Fanyi Lin¹

¹Institute of Photonics Technologies, Department of Electrical Engineering, National Tsing Hua University, Hsinchu City, Taiwan

* Presenter:Hanling Tsay, email:hanlingtsay@gmail.com

We generate and analyze chaos-modulated pulses based on gain-switched semiconductor lasers subject to optical feedback for pulsed chaos lidar applications. Benefited by the aperiodic and uncorrelated chaos waveforms, chaos lidar possesses the advantages of no range ambiguity and immune to interference and jamming. To improve the ranging ability of chaos lidar, pulsed chaos lidar generates and emits chaos-modulated pulses with higher peak powers than CW lidar under the class-1 eye-safe regulations. With proper selections of the feedback strength and the modulation voltages, we successfully generate uncorrelated chaos-modulated pulses suitable for the pulsed chaos lidar applications.

Keywords: Semiconductor laser, Chaos, Nonlinear optics, Lidar