Michael Paul Larson

US Patent:

6419404, Jul 16, 2002

Filed:

Jun 30, 2000

Appl. No.:

09/607992

Inventors:

Robert J. Deri - Pleasanton CA
Michael D. Pocha - Livermore CA
Michael C. Larson - Goleta CA
Henry E. Garrett - Livermore CA

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

G02B 636

US Classification:

385 89, 385 39, 385 49, 385 91

Abstract:

A compact multiwavelength transmitter module for multimode fiber optic ribbon cable, which couples light from an MÃN array of emitters onto N fibers, where the M wavelength may be distributed across two or more vertical-cavity surface-emitting laser (VCSEL) chips, and combining emitters and multiplexer into a compact package that is compatible with placement on a printed circuit board. A key feature is bringing together two emitter arrays fabricated on different substratesâeach array designed for a different wavelengthâinto close physical proximity. Another key feature is to compactly and efficiently combine the light from two or more clusters of optical emitters, each in a different wavelength band, into a fiber ribbon.

US Patent:

20140010248, Jan 9, 2014

Filed:

Jul 5, 2012

Appl. No.:

13/542547

Inventors:

Michael C. Larson - Oakland CA, US

Assignee:

JDS Uniphase Corporation - Milpitas CA

International Classification:

H01S 3/10
G02B 6/34

US Classification:

372 20, 385 37

Abstract:

A spatially modulated waveguide Bragg grating mirror is suspended over a substrate by plurality of fingers extending laterally away from the waveguide centerline. The positions of the fingers are coordinated with the positions of crests and valleys of amplitude or phase modulation of the Bragg grating, to avoid disturbing the Bragg grating when it is tuned by heating. When the Bragg grating is heated, the heat flows through the fingers creating a quasi-periodic refractive index variation along the Bragg grating due to quasi-periodic temperature variation created by the heat flow from the grating through the supporting fingers. Due to coordination of the positions of supporting fingers with positions of the crests and valleys of modulation, the optical phase coherence is maintained along the Bragg grating, so that the spectral lineshape or filtering property of the Bragg grating is substantially preserved.

US Patent:

20230070789, Mar 9, 2023

Filed:

Jul 18, 2022

Appl. No.:

17/867198

Inventors:

- Los Angeles CA, US
Laszlo Takacs - Fremont CA, US
Michael Larson - Fremont CA, US
Artem Mishin - Fremont CA, US

International Classification:

H04B 3/54
H05B 47/185

Abstract:

A network communication module (NCM), comprising: (a) a housing configured to connect to an outlet containing power wiring; (b) a PLC interface in said housing and electrically connected to said power wiring; (c) a legacy control interface configured for electrical connection with one or more downstream devices; (d) a microprocessor and memory configured for causing said microprocessor to perform at least the following steps: communicate over the powerline via PLC to at least receive control signals or transmit data related to said one or more downstream devices, and communicate with said one or more downstream devices via said legacy control interface to transmit control signals or receive said data from one or more said downstream devices.

US Patent:

20210263387, Aug 26, 2021

Filed:

Jun 30, 2020

Appl. No.:

16/917113

Inventors:

- San Jose CA, US
Michael C. LARSON - Oakland CA, US

International Classification:

G02F 1/225
G02B 6/293

Abstract:

A nested Mach-Zehnder device may comprise a parent pre-stage interferometer, a parent interferometer coupled to the parent pre-stage interferometer, a first child pre-stage interferometer, a first child interferometer coupled to the first child pre-stage interferometer, a second child pre-stage interferometer, a second child interferometer coupled to the second child pre-stage interferometer, wherein a phase of each interferometer is electrically adjustable. The nested Mach-Zehnder device may comprise one or more components to: determine a performance parameter associated with a constellation diagram generated by the nested Mach-Zehnder device; determine that the performance parameter does not satisfy a threshold, and cause a phase of at least one pre-stage interferometer, of the parent pre-stage interferometer, the first child pre-stage interferometer, or the second child pre-stage interferometer, to be electrically adjusted to cause the performance parameter to satisfy the threshold.

US Patent:

20210075713, Mar 11, 2021

Filed:

Nov 16, 2020

Appl. No.:

17/099241

Inventors:

- Atlanta GA, US
Michael David Larson - San Francisco CA, US

Assignee:

AT&T Intellectual Property I, L.P. - Atlanta GA

International Classification:

H04L 12/751

Abstract:

Systems, methods, apparatus and computer-readable medium are described for improving efficiency and robustness for configuring data-planes. Furthermore, systems, methods, and devices are provided for efficiently storing, maintaining and retrieving configuration information for data-planes. The configuration information may be stored and retrieved from a hierarchy of information stored in memory, such as a hierarchy of information in memory, wherein the hierarchy of information has configuration data for one or more data-planes and represents one or more command sequences issued by a controller of the control-plane to one or more data-planes. In certain implementations, the hierarchy of information comprises a plurality of nodes, wherein each node represents at least a portion of a command sequence issued by the controller. The command sequences may be configuration command sequences issued by the control plane to configure the data-planes.

US Patent:

20210063541, Mar 4, 2021

Filed:

Nov 15, 2019

Appl. No.:

16/685409

Inventors:

- Milpitas CA, US
Barrie P. KEYWORTH - Ottawa, CA
Josh P. KEMP - Kanata, CA
Michael C. LARSON - Oakland CA, US
Paul COLBOURNE - Ottawa, CA

International Classification:

G01S 7/481
G01S 7/499
G01S 17/32
G01S 7/491
G02B 27/28
G02B 6/12
H04J 14/06
H04J 14/02

Abstract:

An optical device may include a laser component to emit a source beam and an optical component to split the source beam to generate a first beam and a second beam. The optical device may include a multiplexing component to multiplex the first beam and the second beam to form a first multiplexed beam, an optical system to receive the first multiplexed beam and demultiplex the first beam and the second beam, and a scanning component to scan a field of view with the first beam and the second beam and receive the first beam and the second beam reflected from the field of view. The optical system may multiplex the first beam and the second beam reflected from the field of view to form a second multiplexed beam, and a demultiplexing component may demultiplex the first beam and the second beam reflected from the field of view.

US Patent:

20190319670, Oct 17, 2019

Filed:

Apr 22, 2019

Appl. No.:

16/390842

Inventors:

- Fremont CA, US
Laszlo Takacs - Fremont CA, US
Michael Larson - Fremont CA, US
Artem Mishin - Fremont CA, US

International Classification:

H04B 3/54
G05B 15/02
H05B 37/02
H04L 25/49
H04L 25/02
H04L 12/66

Abstract:

A system comprising: a host device comprising at least, an electrical interface configured for connection to a powerline; a first releasable interface; a powerline communication module for transmitting and receiving information over the powerline; an intelligent module comprising at least, a second releasable interface interconnected to the first releasable interface; a digital processor; memory operatively connected to the processor and configured with instructions for causing the processor to receive and transmit information over the powerline through the powerline communication module.

US Patent:

20190305821, Oct 3, 2019

Filed:

Apr 8, 2019

Appl. No.:

16/377452

Inventors:

- Fremont CA, US
Laszlo Takacs - Fremont CA, US
Michael Larson - Fremont CA, US
Artem Mishin - Fremont CA, US

International Classification:

H04B 3/54
G05B 15/02
H05B 37/02
H04L 25/49
H04L 25/02
H04L 12/66

Abstract:

A system comprising: a host device comprising at least, an electrical interface configured for connection to a powerline; a first releasable interface; a powerline communication module for transmitting and receiving information over the powerline; an intelligent module comprising at least, a second releasable interface interconnected to the first releasable interface; a digital processor; memory operatively connected to the processor and configured with instructions for causing the processor to receive and transmit information over the powerline through the powerline communication module.