Neophotonics Corporation

Opvista, Inc.

Vello Systems, Inc.

Other

Industrial Technology Research Institute

Winston I Way

Ilya Vorobeichik

Anthony J Ticknor

Ming Chia Wu

Ming-Bing Chen

Konstantin Gennadiyevich Kuzmin

Raghavendra V Juluri

Yu-Min Lin

San-Liang Lee

Cedric F Lam

Maria C Yuang

Chao Shi

Chia-Kai Weng

Cost-effective high-data-rate optical data transceivers are presented, comprising an electronic analog transversal filter simultaneously providing one or more of bandwidth compensation and forward impairment compensations for the transmitted optical signal.

Apparatus and method for analog electronic fiber dispersion and bandwidth pre-compensation (EDPC) for use in 50 Gbps and greater pamn optical transceivers

Apparatus and method for analog electronic fiber dispersion and bandwidth pre-compensation (EDPC) for use in 50 Gbps and greater PAMn optical transceivers

Telecommunications switches are presented, including expandable optical switches that allow for a switch of N inputs&#xd7;M outputs to be expanded arbitrarily to a new number of N inputs and/or a new number of M outputs. Switches having internal switch blocks controlling signal bypass lines are also provided, with these switches being useful for the expandable switches.

Scalable optical switches and switching modules

Components of an optical communications network are described at a node of the network providing switching from one or more degrees of received optical signal routed to a plurality of receivers. The switch at the node generally includes a passive reconfigurable optical add drop multiplexer (ROADM) having drop or output ports that connector to optical channels leading to optical receivers without optical amplifiers between the ROADM outputs and the receivers. Configurations of the node and corresponding parameters are described that provide for use of lower cost components due to the absence of an array of optical amplifiers connected to the ROADM outputs.

Optical switching system with a colorless, directionless, and contentionless ROADM connected to unamplified drop channels

A data transceiver module, data transmission system incorporating same and methods related thereto, which include optical transmitters configured to receive an information bearing signal and generate an optical signal having a wavelength different from wavelengths generated by others of the plurality of optical transmitters; optical receivers configured to receive an optical signal having a wavelength matching one of the plurality of optical transmitters and convert it to an information bearing electrical signal; and a four level pulse-amplitude-modulator (PAM4) chip generating a pulse-amplitude-modulated information bearing signal input to at least one optical transmitter of the plurality of optical transmitters and receiving the information bearing from at least one optical receiver of the plurality of optical receivers and converting it to an information signal using pulse amplitude demodulation. Alternative embodiments include coherent-detection-based optical coherent receiver and coherent transmitter.

Dense wavelength division multiplexing and single-wavelength transmission systems

Disclosed by way of exemplary embodiments, a 40/50/100 Gb/s Optical Transceivers/transponders which use opto-electronic components at data rates collectively that are lower than or equal to half the data rate, using two optical duobinary carriers. More specifically, the exemplary embodiments of the disclosed optical transceivers/transponders relate to a 43 Gb/s 300pin MSA and a 43&#x2dc;56 Gb/s CFP MSA module, both include a two-carrier optical transceiver and the appropriate hardware architecture and MSA standard interfaces. The two-carrier optical transceiver is composed of a pair of 10 Gb/s optical transmitters, each using band-limited duobinary modulation at 20&#x2dc;28 Gb/s. The wavelength channel spacing can be as little as 19&#x2dc;25 GHz. The same principle is applied to a 100 Gb/s CFP module, which is composed of four tunable 10 Gb/s optical transmitters, with the channel spacing between optical carriers up to a few nanometers.

40, 50 and 100 Gb/s optical transceivers/transponders in 300pin and CFP MSA modules

Disclosed by way of exemplary embodiments, a 40/50/10 Gb/s Optical Transceivers/transponders which use opto-electronic components at data rates collectively that are lower than or equal to half the data rate, using two optical duobinary carriers. More specifically, the exemplary embodiments of the disclosed optical transceivers/transponders relate to a 43 Gb/s 300 pin MSA and a 43&#x2dc;56 Gb/s CFP MSA module, both include a two-carrier optical transceiver and the appropriate hardware architecture and MSA standard interfaces. The two-carrier optical transceiver is composed of a pair of 10 Gb/s optical transmitters, each using band-limited duobinary modulation at 20&#x2dc;28 Gb/s. The wavelength channel spacing can be as little as 19&#x2dc;25 GHz. The same principle is applied to a 100 Gb/s CFP module, which is composed of four tunable 10 Gb/s optical transmitters, with the channel spacing between optical carriers up to a few nanometers.

Techniques, apparatus and systems for optical communications, including fiber ring networks with protection switching to maintain optical communications when an optical failure occurs and to automatically revert to normal operation when the optical failure is corrected, fiber ring networks that provide a circulating optical probe signal at an optical probe wavelength within the gain spectral range of optical amplifiers used in a fiber ring network to detect an optical failure, and fiber ring networks that support broadcast-and-select optical WDM signals carrying communication traffic to the optical ring nodes without regeneration at each optical ring node and one or more overlaid in-band node-to-node optical signals carrying communication traffic with regeneration at each node.

Optical ring networks having node-to-node optical communication channels for carrying data traffic

Techniques and apparatus for optical communication networks including fiber ring networks with protection switching to maintain optical communications when an optical failure occurs and to automatically revert to normal operation when the optical failure is corrected. Implementations include use of a circulating optical probe signal at an optical probe wavelength within the gain spectral range of optical amplifiers used in a fiber ring network to detect an optical failure.

Optical ring networks using circulating optical probe in protection switching with automatic reversion

Systems, apparatus and methods for implementing single-fiber optical ring networks based on double side band modulation.

Single-fiber optical ring networks based on optical double sideband modulation

Optical techniques, devices and systems for combining duobinary modulation and optical subcarrier multiplexing in optical communication applications. An analog mixer is used to mix a duobinary signal for a data channel and a local oscillator signal to produce a modulation control signal for controlling the subsequent optical subcarrier multiplexing modulation. Various optical subcarrier multiplexing modulation techniques may be used including optical single sideband modulators and optical double sideband modulators.

Optical communication using duobinary modulation

An all-optical label swapping system and method superimposes a low-speed ASK label on top of a high-speed DC-balanced-line-coded ASK payload. An old ASK label is erased by modulating the combined payload and label signal with the inverse of the received ASK label. This ASK labeling technique requires only low speed external modulators and low speed optical receivers to perform the label swapping mechanism, and does not require sophisticated optical components.

Using superimposed ASK label in an all-optical label swapping system and method thereof

An all optical network for optical signal traffic has at least a first ring with at least one transmitter and one receiver. The first ring includes a plurality of network nodes. At least a first add/drop broadband coupler is coupled to the first ring. The broadband coupler includes an add port and a drop port to add and drop wavelengths to and or from the first ring, a pass-through direction and an add/drop direction. The first add/drop broadband coupler is configured to minimize a pass-through loss in the first ring and is positioned on the first ring.

Growing community of inventors

Irvine, CA, United States of America

Winston I Way