University of Southern California

Lyteloop Technologies, LLC

Other

Lightchip, Inc.

Leland Stanford Junior University

Alan Eli Willner

Paul Francis McManamon

Ohad Harlev

Sanggeon Lee

Yongxiong Ren

Daniel Damaghi

Zhongqi Pan

Qian Yu

Guodong Xie

Yinwen Cao

Yong Xie

Armand Vedadi-Comte

Lianshan Yan

Kai-Ming Feng

Yan Yan

Reza Khosravani

Lin Zhang

Jin-Xing Cai

Salman Khaleghi

Mohammad Reza Chitgarha

Yang Yue

Long Li

Robert K Wade

Jack L Feinberg

Moshe Tur

Joseph R Dempewolf

Victor E Grubsky

Joseph Dean Touch

Steven A Havstad

Amirhossein Mohajerin-Ariaei

Paniz Ebrahimi

Ariel Litvin

Naftaly Barak

Asher McGuffin

Asaf B Sahin

Ahmed Almaiman

Mustafa C Cardakli

Fatemeh Alishahi

Yong-Won Song

Charles Rocco Palanzo

Ryan Justin Howard

Asher J Willner

Cong Liu

Morteza Ziyadi

Hao Huang

Paul Francis Mcmanamon

Yan Wang

Constance J Chang-Hasnain

Dmitry S Starodubov

Ian Turner

Purushotham Kamath

Robert H Dueck

Boyd V Hunter

Curtis Robert Menyuk

John E McGeehan

Dipayan Datta Choudhary

Jonathan L Habif

Nisar Ahmed

Joseph Bannister

Dmtry Starodubov

William W Peck

P Vijay Kumar

James E Leight

Olaf H Adamczyk

Ahmad Fallahpour

Jiangde Peng

Amir Minoofar

Edem Ibragimov

Peicheng Liao

Changjing Bao

Zhe Zhao

Zhe Wang

Moshe J Willner

Omer F Yilmaz

Asher Voskoboinik

Reza Omrani

Poorya Saghari

Aatash Patel

Sm Reza Motaghian Nezam

Deniz Gurkan

M Imran Hayee

Ting Luo

Changyuan Yu

Ivan T Lima, Jr

Daniel M Damaghi

Asher Mcguffin

A control signal may be modulated on an optical wave. A transmitter may transmit the control signal to a switch/processor location. At the remote node, the control signal is received and converted from an optical signal to an electrical signal to drive the switch/processor. To provide electrical power at the switch/processor location, optical power is transmitted from a distance and converted to electrical power using a series of PDs. Monitoring tones may be sent to the remote node and fed back to the transmitter to realize an operation state and detect a bias drift. Accordingly, an OSP function at a remote node is enabled without using any local electrical power supply.

Remotely biasing, controlling, and monitoring a network routing node based on remotely provided optical signals

A method for all-optical reduction of inter-channel crosstalk for spectrally overlapped optical signals for maximizing utilization of an available spectrum includes receiving a plurality of spectrally overlapped optical signals modulated with data. The method further includes generating conjugate copies of each of the plurality of optical signals using non-linear optics. The method further includes selecting the conjugate copies and adjusting an amplitude, a phase, and a delay of the conjugate copies. The method further includes performing inter-channel interference (ICI) compensation on the spectrally overlapped optical signals in an optical domain by adding the adjusted conjugate copies to the spectrally overlapped optical signals.

Optical mitigation of inter-channel crosstalk for WDM channels

A system and method for extending the path length of an electromagnetic wave signal traveling between apertures is disclosed. One such system may comprise N arrays having Mthrough Mapertures, respectively, wherein N&#x2265;2, M&#x2265;2, and each of Mthrough M&#x2265;1, a substantial number of the Mapertures in a first array is configured to send the electromagnetic wave signal to a substantial number of the Mapertures in a second array through the Mapertures in a N-th array, the substantial number of the Mapertures in the second array through the Mapertures in the N-th array receiving the electromagnetic wave signal from the substantial number of the Mapertures in the first array is configured to redirect the received electromagnetic wave signal back to the substantial number of the Mapertures in the first array, and the substantial number of the Mapertures in the first array is further configured to send the electromagnetic wave signal to another one of the Mapertures in the first array after receiving the redirected electromagnetic wave signal from a M-th aperture in the N-th array.

System and method for extending path length of a wave signal using angle multiplexing

An apparatus comprising a cavity having interior surfaces or reflecting elements, one or more transmitters configured to receive an electrical signal, transform the electrical signal into an electromagnetic wave signal, and introduce the electromagnetic wave signal into an inside of the cavity, and one or more receivers configured to retrieve the electromagnetic wave signal, transform the electromagnetic wave signal to a corresponding electrical signal, and transmit the corresponding electrical signal to the outside of the cavity is disclosed. The electromagnetic wave signal is contained within the inside of the cavity until retrieved by undergoing a series of reflections or traversals between the interior surfaces of the cavity or the reflecting elements within the cavity. The apparatus may further comprise one or more regenerators configured to re-amplify, re-shape, and/or re-time the electromagnetic wave signal traveling within the inside of the cavity.

Apparatus and method for storing wave signals in a cavity

A system comprising a recirculating loop configured to store an electromagnetic wave signal, the recirculating loop comprising a transmission medium and a plurality of transceivers configured to introduce the electromagnetic wave signal into the transmission medium and retrieve the electromagnetic wave signal from the transmission medium, and a signal conditioning system comprising a plurality of signal conditioners coupled to the transmission medium, the plurality of signal conditioners configured to amplify or regenerate the electromagnetic wave signal traveling in the transmission medium, one or more pump laser sources, wherein at least one of the one or more pump laser sources is configured to provide a pump laser beam to at least two of the plurality of signal conditioners, and one or more control circuits for controlling the plurality of signal conditioners, wherein at least one of the one or more control circuits is configured to control and monitor at least two of the plurality of signal conditioners, is disclosed.

Systems and methods for building, operating and controlling multiple amplifiers, regenerators and transceivers using shared common components

A data storage system is disclosed that includes a recirculating loop storing data in motion. The data may be carried by a signal via the loop including one or more satellites or other vessels that return, for example by reflection or regeneration, the signals through the loop. The loop may also include a waveguide, for example an optical fiber, or an optical cavity. Signal multiplexing may be used to increase the contained data. The signal may be amplified at each roundtrip and sometimes a portion of the signal may be regenerated.

Data in motion storage system and method

Methods, systems, and apparatus for generating Kerr frequency combs. The system includes a continuous-wave pump laser to provide a master comb pump. The system includes a microresonator that generates a master Kerr frequency comb using the master comb pump. The system includes a splitter that splits the master Kerr frequency comb into multiple CW comb lines including a first comb line used to transmit a data signal and a second comb line used as a slave comb pump. The system includes a combiner that is configured to combine the first comb line and the second comb line to produce a combination of a data channel and CW comb line. The system includes a second demultiplexer that extracts the second comb line that is used as the slave comb pump. The system includes another microresonator that uses the second comb line and generates a slave Kerr frequency comb.

Multiple Kerr-frequency-comb generation using different lines from a remote Kerr comb

A system for structuring a directed energy beam includes one or more coherent light sources that emit one or more initial light beams, one or more spatial light modulators that modulate the one or more initial light beams, and a beam combiner that coherently adds orbital angular momentum beams to create a reconfigurable spatial region of localized power that forms the directed energy beam. Each spatial light modulator is loaded with a pattern that receives an incident light beam and outputs an orbital angular momentum beam. The pattern encodes one or more orthogonal orbital angular momentum functions. Characteristically, each orbital angular momentum having an associated complex weight with which each orbital angular momentum beam is weighted in forming the coherent addition.

Spatial light structuring using a combination of multiple orthogonal orbital angular momentum beams with complex coefficients

Methods, systems, and devices for data encoding and channel hopping. The system includes a signal source for providing a signal. The system includes an optical switch having an input port and multiple output paths. The optical switch is configured to receive, at the input port, the signal. The optical switch is configured to route the signal to an output path of the multiple output paths. The system includes a mode converter that is connected to the optical switch and configured to select an orbital angular momentum (OAM) mode. The mode converter is configured to encode or channel hop the signal using the OAM mode and combine the signal from each output path. The system includes a transmitter configured to propagate the signal.

Data encoding and channel hopping using orbital angular momentum modes

A system includes a transmitter with multiple transmit devices each having an OAM multiplexer that converts multiple input signals into an OAM beam. Each transmit device outputs a coaxial group of orthogonal OAM beams. The system also includes a receiver that has multiple receive devices each having an OAM demultiplexer that receives the group of OAM beams from a corresponding transmit device. The OAM demultiplexer also converts the coaxial group of mutually orthogonal OAM beams into a plurality of received signals corresponding to input signals represented by the OAM beams. The receiver also includes a MIMO processor that has an equalizer that determines a transfer function corresponding to crosstalk of each of the plurality of received signals. The MIMO processor also reduces the crosstalk of each of the plurality of received signals based on the transfer function and updates the transfer function.

Systems and techniques for communication using combined orbital angular momentum and multiple-input-multiple-output processing

A system includes a transmitter having a first transmit device having a first transmit antenna and a first OAM multiplexer designed to receive two input signals and to convert the input signals to orthogonal OAM beams. The first transmit antenna is designed to transmit a first output signal that includes the OAM beams. The transmitter also includes a second transmit device that functions in a similar manner as the first transmit device. A receiver includes a first receive device having a first receive antenna designed to receive the first output signal and a first OAM demultiplexer designed to convert the first output signal to received signals corresponding to the input signals. The receiver also includes a second receive device having similar features as the first receive device. The receiver also includes a MIMO processor designed to reduce interference between the received signals.

Systems and techniques for communication using multiple-input-multiple-output processing of orbital angular momentum modes

A method for transmitting an optical signal through a first channel and a second channel includes coupling the optical signal with a first pair of comb lines separated by a spacing frequency to create an optical signal copy that is spaced from the optical signal by the spacing frequency. The method also includes filtering a first slice of the optical signal and a second slice of the optical signal copy. The method also includes transmitting the first slice of the optical signal and the second slice of the optical signal through the first channel and the second channel, respectively. The method also includes stitching the first slice of the optical signal with the second slice of the optical signal copy to generate a stitched version of the original optical signal.

Tunable optical channel slicing and stitching to enable dynamic bandwidth allocation

Methods, systems, and apparatus for phase-sensitive regeneration of a signal without a phase-locked loop and using Brillouin amplification. The system for phase-sensitive regeneration includes a data channel, one or more pumps and a mixing stage. The one or more pumps are coupled with the data channel. The mixing stage is coupled with the data channel and is for processing a data signal that is combined with an output of the one or more pumps and idler or higher harmonic. The mixing stage is configured to amplify the idler or higher harmonic using Brillouin amplification in a Brillouin gain medium to keep the one or more pumps and the data channel phase-locked.

Phase-sensitive regeneration without a phase-locked loop using brillouin amplification

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Los Angeles, CA, United States of America

Alan Eli Willner