Facilitating echo cancellation within communication networks is contemplated, such as but not necessarily limited to facilitating echo cancellation within full-duplex (FDX) communication networks. The echo cancellation may optionally be performed with an echo canceller included as part of or otherwise associated with an FDX node used to facilitate interfacing signaling between a digital domain and an analog domain of a FDX or other communication network.

A full duplex communication network includes an optical transmitter end having a first coherent optics transceiver, an optical receiver end having a second coherent optics transceiver, and an optical transport medium operably coupling the first coherent optics transceiver to the second coherent optics transceiver. The first coherent optics transceiver is configured to simultaneously transmit a downstream optical signal and receive an upstream optical signal. The second coherent optics transceiver is configured to simultaneously receive the downstream optical signal from the first coherent optics transceiver and transmit the upstream optical signal first coherent optics transceiver. At least one of the downstream optical signal and the upstream optical signal includes at least one coherent optical carrier and at least one non-coherent optical carrier.

Embodiments herein describe an intelligent optical cable that includes an optical assembly disposed between two pluggable connectors. In one embodiment, the optical assembly in the intelligent optical cable are coupled to the pluggable connectors via respective ribbons, where first ends of the ribbons are connected to the optical assembly while second ends of the ribbons are connected to respective pluggable connectors. In one embodiment, the optical assembly includes a photonic chip which performs an optical function on the optical signals propagating in the optical cable.

An optical system including a forward and a backward Raman pump module positioned along a transmission fiber; a noise matrix computing module configured to: determine, for first gains of the optical signal, a first noise associated with the first gain of the forward Raman pump; determine, for second gains of the optical signal, a second noise associated with the second gain of the backward Raman pump module; generate a noise matrix based on i) the first noise for each first gain of the forward Raman pump module and ii) the second noise for each second gain of the backward Raman pump module; identify a span loss of the optical signal as the optical signal is transmitted along the transmission fiber; identify a combination of a particular first gain of the forward Raman pump module and a particular second gain of the backward Raman pump module.

A system to control convergence of a loop to a reference value. A device, under control of the control loop, generates an output signal. A comparator compares the output signal to a reference value. Responsive to the output signal being less than the reference value, outputting an up signal and, responsive to the output signal being greater than the reference value, outputting a down signal. A counter is configured to maintain a counter value which is incremented in response to an up signal and decremented in response to a down signal. The counter outputs a gain control value. An up/down signal tracker is configured to track a pattern of up signals and down signals and compare the tracked pattern to one or more predetermined patterns such that, responsive to the up signals and down signals matching one of the one or more predetermined patterns, the counter size is decreased.

A method for transmitting time information and quantum states on an optical medium is disclosed. The method includes transmitting information comprising a timing information and quantum states over a single wavelength on an optical medium. The method also includes receiving each transmitted information sequentially in the corresponding plurality of time slots at a receiver. The method also includes comparing each timing information received in the corresponding plurality of timeslots with timing information of a preceding hold over time slot of the plurality of time slots. The method also includes determining a time drift encountered at the receiver based on a compared result. The method also includes synchronising phase and frequency of the plurality of transmitted packets of the information based on minimization of determined time drift.

Old and new standard, regular electrical-only, non-optical connectors, such as USB, Lightning, HDMI, Ethernet, are modified for migrating into new optical capabilities. These electrical-only connectors are integrated with active microelectronic/optical conversion components inside for converting electrical signals to optical signals and optical signals back to electrical signals. Newly integrated connectors are 100% physically and functionally compatible with the original electrical-only connectors which have the same sizes, colors, shapes, cut-outs, mating cavities, mounting holes, pins and foot-prints can directly replace the old connectors to install onto the same surface-mount pads, through-holes of PCB of existing product designs. The newly invented connectors are for phone/computer/video/camera/storage/network equipment manufacturers to easily adopt and assemble their products with new optical connectivity for tremendous performance improvement in bandwidth, distance and reversibility with lowest cost for both wired and wireless optical applications.

Apparatus and methods are disclosed for communicating between distributed automotive sensors, including radar sensors, wherein sensors transmit a synchronization (SYNC) signal, each SYNC signal transmitted via a substantially equal-length fiber optic link corresponding with each sensor. A central node receives the SYNC signals via the fiber optic links corresponding with each of the sensors and determines a master SYNC signal based on the received SYNC signals. The central node then transmits the master SYNC signal via the fiber optic links to the sensors, which receive the master SYNC signal and transmit, via fiber optic link, sensor data synchronized in accordance with the master SYNC signal. The synchronized sensor data are received at the central node and coherently aggregated, and transmitted to a compute node for post-processing. For radar data, the post-processing may include determination of an angular position of an object within detection range of at least two radar sensors.

A method for implementing a variable optical splitter and a variable optical splitter are provided. The method includes that: the variable optical splitter is divided into one or more virtual optical splitting units according to wavelengths/wavebands of optical signals, wherein the virtual optical splitting units and the wavelengths/wavebands are in a one-to-one correspondence, and moreover, the wavelengths/wavebands and splitting ratios are also in a one-to-one correspondence; and optical guiding or optical splitting is performed on the incident optical signals through the virtual optical splitting units. By adopting the technical solutions provided by the present disclosure, the technical problems that there is yet no optical splitter with a variable splitting ratio in the related technology and the like are solved, and controllability of the splitting ratios of the optical splitter is achieved.

Technologies for allocating resources of managed nodes to workloads to balance multiple resource allocation objectives include an orchestrator server to receive resource allocation objective data indicative of multiple resource allocation objectives to be satisfied. The orchestrator server is additionally to determine an initial assignment of a set of workloads among the managed nodes and receive telemetry data from the managed nodes. The orchestrator server is further to determine, as a function of the telemetry data and the resource allocation objective data, an adjustment to the assignment of the workloads to increase an achievement of at least one of the resource allocation objectives without decreasing an achievement of another of the resource allocation objectives, and apply the adjustments to the assignments of the workloads among the managed nodes as the workloads are performed. Other embodiments are also described and claimed.