Secure communication scheme using chaotic laser diodes subject to incoherent optical feedback and incoherent optical injection

Secure communication scheme using chaotic laser diodes subject to incoherent optical feedback and incoherent optical injection.

We propose a secure communication scheme based on anticipating synchronization of two chaotic laser diodes, one subject to incoherent optical feedback and the other to incoherent optical injection. This scheme does not require fine tuning of the optical frequencies of both lasers as is the case for other schemes based on chaotic laser diodes subject to coherent optical feedback and injection. O...

Synchronization in Multiple Time Delay Chaotic Laser Diodes Subject to Incoherent Optical Feedbacks and Incoherent Optical Injection

We present the first report of the synchronization regimes in both unidirectionally and bidirectionallycoupled multiple time delay chaotic laser diodes subject to incoherent optical feedbacks and incoherent optical injection. We derive the existence conditions and numerically study the stability for lag, complete, and anticipating synchronization regimes and cascaded synchronization. We also st...

Chaotic Dynamics of Laser diodes with Strongly Modulated Optical Injection

In this paper, a modulated optical injection system is proposed. It mainly consists of a semiconductor laser subject to a modulated optical injection. It is known that optical injection will force a laser intensity into high-speed periodic oscillation without modulation, while the oscillation will be locked with weak external modulation. However, the route to chaos in such a system is observed ...

Aberration Invariant Optical/Digital Incoherent Optical Systems

By optimum combination of optical pre-processing and digital post-processing, or optical coding and digital decoding of the image information, incoherent optical systems invariant to numerous aberrations can be formed. The theory of aberration invariance can also be used with low-cost, low-precision optics to produce systems that image with the performance of high-cost, high-precision, or near ...

Photorefractive incoherent-to-coherent optical converter.