A TORminator module is disposed with a switch linecard of a rack. The TORminator module receives downlink electrical data signals from a rack switch. The TORminator module translates the downlink electrical data signals into downlink optical data signals. The TORminator module transmits multiple subsets of the downlink optical data signals through optical fibers to respective SmartDistributor modules disposed in respective racks. Each SmartDistributor module receives multiple downlink optical data signals through a single optical fiber from the TORminator module. The SmartDistributor module demultiplexes the multiple downlink optical data signals and distributes them to respective servers. The SmartDistributor module receives multiple uplink optical data signals from multiple servers and multiplexes them onto a single optical fiber for transmission to the TORminator module. The TORminator module coverts the multiple uplink optical data signals to multiple uplink electrical data signals, and transmits the multiple uplink electrical data signals to the rack switch.

An optical system, comprising a first wavelength conversion module to: adjust a power of a first pump wavelength; couple an input signal with the first pump wavelength to generate a first coupled signal; perform a first wavelength conversion of the first coupled signal to generate a first wavelength converted signal, the power of the first pump wavelength is adjusted such that the first wavelength conversion is performed with 0 dB conversion efficiency; the optical amplifier to amplify the first wavelength converted signal; a second wavelength conversion module to: adjust a power of a second pump wavelength; couple the amplified first wavelength converted signal with the second pump wavelength to generate a second coupled signal; perform a second wavelength conversion of the second coupled signal to generate a second wavelength converted signal with 0 dB conversion efficiency.

A DeMux/Mux module comprises a first submodule comprising a first fiber and a second fiber disposed symmetrically about a first optical axis of the first submodule, a first lens and a first WDM filter attached to the first lens, A first incident light is incident on the first WDM filter. Light having a first transmitted wavelength is transmitted through the first WDM filter and is output from the second fiber. Light having wavelengths other than the first transmitted wavelengths is reflected from the first WDM filter, and input to a second submodule through light propagation in free space.

Aspects described herein include an optical apparatus comprising an input port configured to receive an optical signal comprising a plurality of wavelengths, and a plurality of output ports. Each output port is configured to output a respective wavelength of the plurality of wavelengths. The optical apparatus further comprises a first plurality of two-mode Bragg gratings in a cascaded arrangement. Each grating of the first plurality of two-mode Bragg gratings is configured to reflect a respective wavelength of the plurality of wavelengths toward a respective output port of the plurality of output ports, and transmit any remaining wavelengths of the plurality of wavelengths.

Various implementations of a data communication cable assembly are disclosed that improve the transmission of data signals that traverse long distances. Some cable assembly implementations are configured to transmit data signals via one or more electrical wire mediums and one or more signal extenders that modify the data signals for improved transmission between devices over one or more electrical wire mediums. Other cable assembly implementations are configured to transmit data signals via one or more optical transmission mediums and optical-to-electrical and electrical-to-optical converters for improved transmission of the data signals between devices. Other cable assembly implementations are configured for cascading or daisy-chaining together for transmitting data signals between devices in the optical and/or electrical domain.

Embodiments of the disclosure provide a demultiplexer for processing a multiplexed optical input. The demultiplexer may include a plurality of Mach-Zehnder Interferometric (MZI) stages for converting the multiplexed optical input into a plurality of component optical signals. Each of the plurality of component optical signals corresponds to a respective wavelength-space component of the multiplexed optical input. A plurality of bandpass filters, each having a respective wavelength passband, may receive one of the plurality of component optical signals. The plurality of bandpass filters generates a plurality of demultiplexed optical signals based on the plurality of component optical signals.

Systems and methods for conducting various types of Connection Validation (CV) are provided for reducing the overall CV scan time of regular CV scans. A method, according to one implementation, includes a step of receiving a request to perform a focused CV on one or more communication cables after the one or more communication cables are physically connected or reconnected into a portion of a network. The method also includes the steps of interrupting an ongoing CV running in the portion of the network and executing the focused CV to target a CV scan on the one or more communication cables.

A branch units branches an optical signal by the number of wavelength intervals. Each band division unit generates a band division signal in which a signal band is divided into N division bands and an odd channel and an even channel are separated from each other. Multiplexing units multiplex band division signals of the same signal band, and branch means output the multiplexed signal to an optical receiver. A control unit controls the wavelength selective switch included in the band division units based on information indicating a signal arrangement of the signals in the respective wavelength intervals, thereby causing a signal of a signal band in which a signal of a corresponding wavelength interval is present to be included in each band division signal.

Aspects described herein include an optical apparatus comprising a multiple-stage arrangement of two-mode Bragg gratings comprising: at least a first Bragg grating of a first stage. The first Bragg grating is configured to transmit a first two wavelengths and to reflect a second two wavelengths of a received optical signal. The optical apparatus further comprises a second Bragg grating of a second stage. The second Bragg grating is configured to transmit one of the first two wavelengths and to reflect an other of the first two wavelengths. The optical apparatus further comprises a third Bragg grating of the second stage. The third Bragg grating is configured to transmit one of the second two wavelengths and to reflect an other of the second two wavelengths.

An optical cable includes a single optical connector configured for insertion into an optical receptacle so as to receive optical signals at a plurality of different wavelengths from the optical receptacle, and multiple electrical connectors, configured for insertion into respective electrical receptacles. Each electrical connector includes a transceiver configured to convert the optical signals into electrical output signals for output to an electrical receptacle. The optical cable further includes a plurality of optical fibers, having respective first ends connected together to the single optical connector so as to receive the optical signals. Each of the optical fibers has a respective second end coupled to a respective one of the electrical connectors. Wavelength selection optics are associated with the optical fibers so that the transceiver in each of the electrical connectors receives the optical signals at a different, respective one of the wavelengths.