310 patents
Page 7 of 16
Utility
Correcting Traffic Misconnections In Optical Communications Networks
2 Jun 22
An example system includes a transceiver and a microcontroller.
Rajan Rao, Steven J. Hand, Vasudha Bhaskara
Filed: 6 Jul 21
Utility
Waveguide Dual-depletion Region (DDR) Photodiodes
2 Jun 22
Consistent with the present disclosure, a DDR photodiode is provided on a substrate adjacent to a passive waveguide.
MINGZHI LU, Peter W. Evans
Filed: 29 Nov 20
Utility
Clock recovery for digital subcarriers for optical networks
24 May 22
Optical network systems are disclosed, including a transmitter comprising a digital signal processor that receives data; circuitry that generate a plurality of electrical signals based on the data; a plurality of filters, each of which receiving a corresponding one of the plurality of electrical signals, a plurality of roll-off factors being associated with a respective one of the plurality of filters; a plurality of digital-to-analog converter circuits that receive outputs from the digital signal processor, the outputs being indicative of outputs from the plurality of filters; a laser that supplies light; and a modulator that receives the light and outputs from the digital-to-analog converter circuits, the modulator supplying a plurality of optical subcarriers based on the outputs of the digital-to-analog converter circuits, such that one of the plurality of optical subcarriers carrying information for clock recovery.
Jeffrey T. Rahn, Kuang-Tsan Wu, Steven Joseph Hand, Han Henry Sun
Filed: 26 Jun 20
Utility
System and method for topology discovery and fiber continuity verification in network
24 May 22
An optical network includes an arrangement of optical nodes.
Michael Marti, Rafael da Costa Miranda, Nuno Miguel Pires da Costa Pereira
Filed: 22 Feb 21
Utility
Correcting traffic misconnections in optical communications networks
17 May 22
An example system includes a transceiver and a microcontroller.
Rajan Rao, Steven J. Hand, Vasudha Bhaskara
Filed: 6 Jul 21
Utility
Framework for handling signal integrity using ASE in optical networks
17 May 22
A method and system is described.
Sharfuddin Syed, Ashwini K. Bhat, Vasudha Bhaskara
Filed: 23 Mar 20
Utility
Compensation of Signal Distoration Induced by a Periodic Optical Copropagating Optical Signal
5 May 22
The disclosure relates to a method, an optical receiver and an optical system for compensating, at an optical receiver, signal distortions induced in an optical carrier signal by a periodic copropagating optical signal, wherein the optical carrier signal and the copropagating signal copropagate at least in part of an optical system or network, by: receiving, at the optical receiver, the optical carrier signal, wherein the optical carrier signal is distorted by the copropagating signal; determining, at the optical receiver, a period of a periodic component of the distorted optical carrier signal; determining, at the optical receiver, a periodic distortion of the distorted optical carrier signal; and generating a compensation signal to correct the distorted optical carrier signal according to the determined periodic distortion.
Lutz RAPP
Filed: 25 Feb 20
Utility
Fast system optimization (FSO) with optimally placed recovery tones
3 May 22
Described herein is an apparatus including a continuous wave idler and an optical coupler that provide an optical signal having a power greater than optical channels carrying data, and positioned at a cross-over point between two spectral bands, with each band encompassing multiple optical channels.
Sumudu Geethika Edirisinghe, Pierre Mertz, Steven William Beacall
Filed: 17 Dec 20
Utility
Fast System Optimization (Fso) with Optimally Placed Recovery Tones
28 Apr 22
Described herein is an apparatus including a continuous wave idler and an optical coupler that provide an optical signal having a power greater than optical channels carrying data, and positioned at a cross-over point between two spectral bands, with each band encompassing multiple optical channels.
Sumudu Geethika Edirisinghe, Pierre Mertz, Steven William Beacall
Filed: 17 Dec 20
Utility
Telecommunication System Having a Modulation Format Based Upon Degradation Predictions
28 Apr 22
A control circuit, comprising a processor, and a computer readable medium is described.
Steven William Beacall, Sumudu Geethika Edirisinghe
Filed: 18 Dec 20
Utility
Telecommunication System Having a Modulation Format Based Upon Degradation Predictions
28 Apr 22
An apparatus comprising a control circuit providing a variable control signal, and a transmitter.
Steven William Beacall, Sumudu Geethika Edirisinghe
Filed: 18 Dec 20
Utility
Telecommunication System Having a Modulation Format Based Upon Degradation Predictions
28 Apr 22
A transmitter block, comprising an optical source, a modulator, a transmission circuit and a control circuit.
Steven William Beacall, Sumudu Geethika Edirisinghe
Filed: 18 Dec 20
Utility
Frequency Division Multiple Access Optical Subcarriers
21 Apr 22
A network or system in which a hub or primary node may communicate with a plurality of leaf or secondary nodes.
Jeffrey T. Rahn, Kuang-Tsan Wu, Steven J. Hand, David F. Welch
Filed: 24 Dec 21
Utility
Ramework for Handling Signal Integrity Using Ase In Optical Networks
21 Apr 22
A method and system is described.
Sharfuddin Syed, Ashwini K. Bhat, Vasudha Bhaskara
Filed: 24 Dec 21
Utility
Highly parallel and scalable cyclic redundancy check
19 Apr 22
Techniques for calculation of CRC values for very large Ethernet packets in a quick manner are disclosed.
Ashok Jain
Filed: 21 Dec 16
Utility
Multi layer protection control for coherent DWDM networks
19 Apr 22
A terminal node, an optical network and/or a method are described in which a first processor of a first optical protection switching module having a first optical switch, and a second processor of a second optical protection switching module having a second optical switch coordinate switching of the first optical switch and the second optical switch upon detection of a first failure by the first processor, or the detection of a second failure by the second processor.
Kapil Juneja, Amit Satbhaiya, Rajan Rao
Filed: 18 Dec 20
Utility
Individually Routable Subcarriers
14 Apr 22
Consistent with an aspect of the present disclosure, electrical signals or digital subcarriers are generated in a DSP based on independent input data streams.
Kuang-Tsan Wu, Matthew L. Mitchell
Filed: 24 Dec 21
Utility
Individually Routable Subcarriers
14 Apr 22
Consistent with an aspect of the present disclosure, electrical signals or digital subcarriers are generated in a DSP based on independent input data streams.
Kuang-Tsan Wu, Matthew L. Mitchell
Filed: 24 Dec 21
Utility
Dual parallel Mach-Zehnder-modulator device with pre-distorted driving voltages
5 Apr 22
Disclosed herein is a dual parallel Mach-Zehnder-modulator (DPMZM) device comprising a DPMZM 10 having first and second inner MZMs arranged parallel to each other.
Alessandro Bianciotto, Stefano CalabrĂ³, Maxim Kuschnerov, Mahdi Mezghanni, Antonio Napoli, Bernhard Spinnler
Filed: 26 Feb 19
Utility
Dynamically switching queueing schemes for network switches
5 Apr 22
An example system includes a first network node, a second network node, and a third network node.
Steven J. Hand
Filed: 31 Dec 19