Neal N Oza

US Patent:

20220236393, Jul 28, 2022

Filed:

Dec 30, 2021

Appl. No.:

17/566524

Inventors:

- Mountain View CA, US
Neal N. Oza - Palo Alto CA, US
Oguzhan Avci - San Francisco CA, US
Keith Gagne - Santa Clara CA, US
Mina Rezk - Haymarket VA, US

International Classification:

G01S 7/4911
G01S 7/481
G01S 7/4913
G01S 7/4912
G01S 13/34

Abstract:

A light detection and ranging (LIDAR) system includes an optical source to emit a corresponding plurality of optical beams with synchronized chirp rates and synchronized chirp durations. The plurality of optical beams are each tuned to produce regions of constructive and destructive interference into a combined optical beam. A first optical component forms a phase-locked loop to correct nonlinearities detected in the plurality of optical beams. A second optical component transmits a combined optical beam toward a target environment and receives a target return signal. A third optical component downconverts the target return signal to a plurality of fixed frequency downconverted target return signals, each including a target range component and a target velocity component.

US Patent:

20230125665, Apr 27, 2023

Filed:

May 16, 2022

Appl. No.:

17/745657

Inventors:

- Mountain View CA, US
Keith Gagne - Santa Clara CA, US
Neal N. Oza - Washington DC, US
Cameron Howard - Bend OR, US

International Classification:

G02F 1/29

Abstract:

A system and method including, receiving a plurality of optical beams in a first direction along a first plane in a first beam pattern towards an optical element based on a trajectory that causes at least a portion of the plurality of optical beams to not contact a surface of the optical lens. The system and method includes transmitting a first set of the plurality of optical beams in the first direction along a second plane. The system and method includes transmitting a second set of the plurality of optical beams in the first direction along the first plane. The system and method includes generating a second beam pattern by transmitting the first set and the second set of the plurality of optical beams through an optical element, wherein the second beam pattern adjusts the trajectory to cause the portion to contact the surface of the optical lens.

US Patent:

20230049443, Feb 16, 2023

Filed:

Nov 1, 2022

Appl. No.:

17/978520

Inventors:

- Mountain View CA, US
Omer P. Kocaoglu - Fremont CA, US
Neal N. Oza - Palo Alto CA, US
Keith Gagne - Santa Clara CA, US
Behsan Behzadi - Sunnyvale CA, US
Mina Rezk - Haymarket VA, US

International Classification:

G01S 17/34
G01S 7/499
G01S 7/4912

Abstract:

Free-space optics for use in a light detection and ranging (LIDAR) apparatus include a polarization beam-splitter (PBS) to direct an optical beam in a first direction toward a target environment and to propagate a portion of the optical beam in a second direction for receipt by a photodetector (PD), a polarization wave plate (PWP) to convert the optical beam from a first polarization to a second polarization, and to convert the target return signal from a third polarization to a fourth polarization, and a lens system coupled between the PBS and the PWP to magnify the optical beam. The propagated portion of the optical beam comprises a local oscillator (LO) signal to mix with a target return signal to generate target information.

US Patent:

20230015081, Jan 19, 2023

Filed:

Sep 27, 2022

Appl. No.:

17/953387

Inventors:

- Mountain View CA, US
Omer P. Kocaoglu - Fremont CA, US
Oguzhan Avci - Cupertino CA, US
Neal N. Oza - Palo Alto CA, US
Keith Gagne - Santa Clara CA, US
Behsan Behzadi - Sunnyvale CA, US

International Classification:

G01S 7/4911
G01S 7/481
G01S 17/08

Abstract:

A light detection and ranging (LIDAR) apparatus is provided that includes a dispersive element and an optical circuit. The optical circuit is to emit a first optical beam having a first frequency and a second optical beam having a second frequency towards the dispersive element to deflect the first optical beam and the second optical beam based on a frequency.

US Patent:

20210257406, Aug 19, 2021

Filed:

May 4, 2021

Appl. No.:

17/307896

Inventors:

- Mountain View CA, US
Keith Gagne - Santa Clara CA, US
Neal N. Oza - Palo Alto CA, US
Omer P. Kocaoglu - Fremont CA, US

International Classification:

H01L 27/22
G11C 11/16
H01F 10/32
H01L 43/08
H01L 43/10

Abstract:

A light detection and ranging (LIDAR) system is provided that includes an optical a scanning mirror to steer a laser beam emitted from the tip of an optical fiber to scan a scene, and collect light incident upon any objects in the scene that is returned to the fiber tip. The LIDAR system further includes a re-imaging lens located between the optical fiber and scanning mirror, and an optic located between the scanning mirror and the scene. The re-imaging lens focuses the laser beam emitted from the optical fiber on or close to the first scanning mirror's center of rotation and thereby re-image the fiber tip at or close to the center of rotation, from which the laser beam is reflected as a divergent laser beam. And the optic is configured to collimate or focus the divergent laser beam from the first scanning mirror that is launched toward the scene.

US Patent:

20210096228, Apr 1, 2021

Filed:

Sep 27, 2019

Appl. No.:

16/586737

Inventors:

- Mountain View CA, US
Neal N. Oza - Palo Alto CA, US
Oguzhan Avci - Cupertino CA, US
Keith Gagne - Santa Clara CA, US
Mina Rezk - Haymarket VA, US

International Classification:

G01S 7/4911
G01S 7/4913
G01S 7/4912
G01S 7/481
G01S 13/34

Abstract:

A light detection and ranging (LIDAR) system includes optical sources to emit optical beams with synchronized chirp rates and chirp durations. The optical beams provide a comb of coherent optical beams with a fixed frequency separation between frequency adjacent optical beams. A first set of first optical components amplifies and combines the optical beams into a combined optical beam. A second set of optical components transmits the combined optical beam toward a target environment and receives a target return signal. A third set of optical components downconverts the target return signal to downconverted target return signals corresponding to the optical beams, and coherently combines the downconverted target return signals.

US Patent:

20200400798, Dec 24, 2020

Filed:

Jun 21, 2019

Appl. No.:

16/449189

Inventors:

- Mountain View CA, US
Omer P. Kocaoglu - Fremont CA, US
Oguzhan Avci - Cupertino CA, US
Neal N. Oza - Palo Alto CA, US
Keith Gagne - Santa Clara CA, US
Behsan Behzadi - Sunnyvale CA, US

International Classification:

G01S 7/491
G01S 7/481
G01S 17/08

Abstract:

A light detection and ranging (LIDAR) apparatus is provided that includes an optical source to emit a first optical beam having a first frequency and a second optical beam having a second frequency and a dispersive element to deflect the first optical beam having the first frequency at a first angle and the second optical beam having the second frequency at a second angle.

US Patent:

20200319314, Oct 8, 2020

Filed:

Apr 4, 2019

Appl. No.:

16/375511

Inventors:

- Mountain View CA, US
Omer P. Kocaoglu - Fremont CA, US
Keith Gagne - Santa Clara CA, US
Oguzhan Avci - Cupertino CA, US
Neal N. Oza - Palo Alto CA, US
Mina Rezk - Haymarket VA, US

International Classification:

G01S 7/481
G01S 7/491
G02B 27/30
G02B 27/28
G01S 17/32
G01S 17/58
G01S 17/89

Abstract:

A light detection and ranging (LIDAR) apparatus is provided that includes an optical source configured to emit an optical beam. The LIDAR apparatus further includes free space optics configured to receive a first portion of the optical beam as a target signal and a second portion of the optical beam as a local oscillator signal, and combine the target signal and the local oscillator signal. The LIDAR apparatus includes a multi-mode (MM) waveguide configured to receive the combined signal.