Application in Secret Communication of Chaos Driving Synchronization of Vertical Cavity Surface Emitting Lasers with Optical Feedback

Time-delay signature concealment of polarizationresolved chaos outputs in vertical-cavity surface-emitting lasers with variablepolarization filtered optical feedback

“…Recently, abundant research has been done to the subject of semiconductor laser (SL)-based or erbium-doped fiber laser (EDFL)-based optical chaos for its various applications such as chaotic radar, secure communication, fast physical random bit generation, optical logic gates [1][2][3][4][5][6][7][8] , and so on. Through introducing external perturbations such as optical injection, optoelectronic feedback, or optical feedback [9][10][11][12] , SLs can be driven into a chaotic output state, where optical feedback SL has been usually regarded as a primary candidate for an optical chaos source since introducing optical feedback can relatively easily yield complex chaos.…”