A satellite relay communication system includes a central terminal. The central terminal includes a passive optical router and a multiplexer. The satellite relay communication system also includes remote terminals, each remote terminal including an optical transceiver configured to send optical signals to the passive optical router, configured to receive optical signals from the passive optical router, and configured to multiplex optical signals received from the passive optical router.

A satellite relay communication system includes a central terminal. The central terminal includes a passive optical router and a multiplexer. The satellite relay communication system also includes remote terminals, each remote terminal including an optical transceiver configured to send optical signals to the passive optical router, configured to receive optical signals from the passive optical router, and configured to multiplex optical signals received from the passive optical router.

Systems and methods for optical modulation index calibration in a CATV network.

Systems and methods for optical modulation index calibration in a CATV network.

A method of manufacturing a doped polycrystalline ceramic optical device includes mixing a plurality of transition metal complexes and a plurality of rare-earth metal complexes to form a metal salt solution, heating the metal salt solution to form a heated metal salt solution, mixing the heated metal salt solution and an organic precursor to induce a chemical reaction between the heated metal salt solution and the organic precursor to produce a plurality of rare-earth doped crystalline nanoparticles, and sintering the plurality of rare-earth doped nanoparticles to form a doped polycrystalline ceramic optical device having a rare-earth element dopant that is uniformly distributed within a crystal lattice of the doped polycrystalline ceramic optical device.

A method of manufacturing a doped polycrystalline ceramic optical device includes mixing a plurality of transition metal complexes and a plurality of rare-earth metal complexes to form a metal salt solution, heating the metal salt solution to form a heated metal salt solution, mixing the heated metal salt solution and an organic precursor to induce a chemical reaction between the heated metal salt solution and the organic precursor to produce a plurality of rare-earth doped crystalline nanoparticles, and sintering the plurality of rare-earth doped nanoparticles to form a doped polycrystalline ceramic optical device having a rare-earth element dopant that is uniformly distributed within a crystal lattice of the doped polycrystalline ceramic optical device.

Systems and methods are disclosed for configuring a communications network. In disclosed embodiments, for a communication network comprising fiber optic cables connected by switches and transceiver-transponders, a graph representing the communication network can be obtained with edges representing the fiber optic cables, and nodes representing the switches and transceiver-transponders. A set of service links can be determined for a path in the communication network based on a set of demands for the path. Each service link can represent data transmission by one of the transceiver-transponders through one or more of the fiber optic cables connected by zero or more of the switches. Sets of service links can be iteratively selected for progressively longer initial segments of the path. When the initial segment comprises the path, the set of service links for the initial segment can be selected as the set of service links for the path.

Systems and methods are disclosed for configuring a communications network. In disclosed embodiments, for a communication network comprising fiber optic cables connected by switches and transceiver-transponders, a graph representing the communication network can be obtained with edges representing the fiber optic cables, and nodes representing the switches and transceiver-transponders. A set of service links can be determined for a path in the communication network based on a set of demands for the path. Each service link can represent data transmission by one of the transceiver-transponders through one or more of the fiber optic cables connected by zero or more of the switches. Sets of service links can be iteratively selected for progressively longer initial segments of the path. When the initial segment comprises the path, the set of service links for the initial segment can be selected as the set of service links for the path.

Provided are a repeater device for a DisplayPort side channel and an operating method thereof. The repeater device of a DisplayPort includes: a source device processor transmits or receives an electrical signal of a side channel data of the display port to or from a source device and processes repeater data; and a sink device processor transmits or receives an electrical signal of a side channel data of the display port to or from a sink device and processes repeater data, wherein the source device processor or the sink device processor comprising a controller processes repeating of the side channel data of the display port using the repeater data which is obtained by transforming the electrical signal to an optical signal.

Disclosed herein are methods, devices, and system for beam forming and beam steering within ultra-wideband, wireless optical communication devices and systems. According to one embodiment, a free space optical (FSO) communication apparatus is disclosed. The FSO communication apparatus includes an array of optical sources wherein each optical source of the array of optical sources is individually controllable and each optical source configured to have a transient response time of less than 500 picoseconds (ps).