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This book presents posits a solution to the current limitations in global connectivity by introducing a global laser/optical communication system using constellation satellites, UAVs, HAPs and Balloons. The author outlines how this will help to satisfy the tremendous increasing demand for data exchange and information between end-users worldwide including in remote locations. The book provides both fundamentals and the advanced technology development in establishing worldwide communication and global connectivity using, (I) All-Optical technology, and (ii) Laser/Optical Communication Constellation Satellites (of different types, sizes and at different orbits), UAVs, HAPs (High Altitude Platforms) and Balloons. The book discusses step-by-step methods to develop a satellite backbone in order to interconnect a number of ground nodes clustered within a few SD-WAN (software-defined networking) in a wide area network (WAN) around the world in order to provide a fully-meshed communication network. This book pertains to anyone in optical communications, telecommunications, and system engineers, as well as technical managers in the aerospace industry and the graduate students, and researchers in academia and research laboratory. Proposed a solution to the limitations in global connectivity through a global laser/optical communication system using constellation satellites, UAVs, HAPs and Balloons; Provides both fundamentals and the advanced technology development in establishing global communication connectivity using optical technology and communication constellation satellites; Includes in-depth coverage of the basics of laser/optical communication constellation satellites.

Laser communication systems. --- Integrated optics --- Optical communications --- Telecommunication systems --- Coherent light communication systems --- Communication systems, Optical (Laser-based) --- Light communication systems, Laser-based --- Optical communication systems, Laser-based

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Optical instruments --- Physical optics --- Optical Devices. --- Optics and Photonics. --- Optique --- Optique physique --- Optical instruments. --- Physical optics. --- Instruments --- Photonics --- Photonics and Optics --- Optical Components --- Optical System --- Component, Optical --- Components, Optical --- Device, Optical --- Devices, Optical --- Optical Component --- Optical Device --- Optical Systems --- System, Optical --- Systems, Optical --- Optics, Physical --- Optics --- Optical Devices --- Optics and Photonics --- Physical instruments

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Lenses --- Optical Devices --- Equipment and Supplies --- Analytical, Diagnostic and Therapeutic Techniques and Equipment --- Contact Lenses --- Contact Lens --- Lenses, Contact --- Lens, Contact --- Device, Medical --- Devices, Medical --- Equipment --- Inventories --- Medical Device --- Supplies --- Apparatus and Instruments --- Devices --- Medical Devices --- Device --- Instruments and Apparatus --- Inventory --- Supplies and Equipment --- Optical Components --- Optical System --- Component, Optical --- Components, Optical --- Device, Optical --- Devices, Optical --- Optical Component --- Optical Device --- Optical Systems --- System, Optical --- Systems, Optical --- Optics and Photonics

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Lenses --- Optical Devices --- Equipment and Supplies --- Analytical, Diagnostic and Therapeutic Techniques and Equipment --- Contact Lenses --- Contact Lens --- Lenses, Contact --- Lens, Contact --- Device, Medical --- Devices, Medical --- Equipment --- Inventories --- Medical Device --- Supplies --- Apparatus and Instruments --- Devices --- Medical Devices --- Device --- Instruments and Apparatus --- Inventory --- Supplies and Equipment --- Optical Components --- Optical System --- Component, Optical --- Components, Optical --- Device, Optical --- Devices, Optical --- Optical Component --- Optical Device --- Optical Systems --- System, Optical --- Systems, Optical --- Optics and Photonics

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The mid-infrared domain is a promising optical domain because it holds two transparency atmospheric windows, as well as the fingerprint of many chemical compounds. Quantum cascade lasers (QCLs) are one of the available sources in this domain and have already been proven useful for spectroscopic applications and free-space communications. This thesis demonstrates how to implement a private free-space communication relying on mid-infrared optical chaos and this requires an accurate cartography of non-linear phenomena in quantum cascade lasers. This private transmission is made possible by the chaos synchronization of two twin QCLs. Chaos in QCLs can be generated under optical injection or external optical feedback. Depending on the parameters of the optical feedback, QCLs can exhibit several non-linear phenomena in addition to chaos. Similarities exist between QCLs and laser diodes when the chaotic dropouts are synchronized with an external modulation, and this effect is known as the entrainment phenomenon. With a cross-polarization reinjection technique, QCLs can generate all-optical square-waves. Eventually, it is possible to trigger optical extreme events in QCLs with tilted optical feedback. All these experimental results allow a better understanding of the non-linear dynamics of QCLs and will extend the potential applications of this kind of semiconductor lasers.

Lasers. --- Photonics. --- Statistical physics. --- Optics, Lasers, Photonics, Optical Devices. --- Applications of Nonlinear Dynamics and Chaos Theory. --- Physics --- Mathematical statistics --- New optics --- Optics --- Light amplification by stimulated emission of radiation --- Masers, Optical --- Optical masers --- Light amplifiers --- Light sources --- Optoelectronic devices --- Nonlinear optics --- Optical parametric oscillators --- Statistical methods --- Laser communication systems. --- Coherent light communication systems --- Communication systems, Optical (Laser-based) --- Light communication systems, Laser-based --- Optical communication systems, Laser-based --- Integrated optics --- Optical communications --- Telecommunication systems