公开(公告)号：US10992096B2

公开(公告)日：2021-04-27

申请号：US15972680

申请日：2018-05-07

Applicant: Waymo LLC

Inventor： Bernard Fidric ,  Daniel Rosenfeld ,  Rahim Pardhan

IPC: H01S3/04 ,  G01S7/481 ,  H01S3/067 ,  G02B6/02 ,  G02B6/255 ,  H01S3/16 ,  G01S17/02 ,  H01S3/094 ,  H01S3/042 ,  H01S3/08 ,  H01S3/00 ,  G01S17/10 ,  H01S3/0941

Abstract: The present disclosure relates to a fiber encapsulation mechanism for energy dissipation in a fiber amplifying system. One example embodiment includes an optical fiber amplifier. The optical fiber amplifier includes an optical fiber that includes a gain medium, as well as a polymer layer that at least partially surrounds the optical fiber. The polymer layer is optically transparent. In addition, the optical fiber amplifier includes a pump source. Optical pumping by the pump source amplifies optical signals in the optical fiber and generates excess heat and excess photons. The optical fiber amplifier additionally includes a heatsink layer disposed adjacent to the polymer layer. The heatsink layer conducts the excess heat away from the optical fiber. Further, the optical fiber amplifier includes an optically transparent layer disposed adjacent to the polymer layer. The optically transparent layer transmits the excess photons away from the optical fiber.

公开(公告)号：US10693272B2

公开(公告)日：2020-06-23

申请号：US15691917

申请日：2017-08-31

Applicant: Waymo LLC

Inventor： Bernard Fidric ,  Daniel Rosenfeld ,  Rahim Pardhan

IPC: H01S3/04 ,  G01S7/481 ,  H01S3/067 ,  G01S17/02 ,  G02B6/02 ,  G02B6/255 ,  H01S3/094 ,  H01S3/16 ,  H01S3/042 ,  H01S3/08 ,  G01S17/10 ,  H01S3/0941 ,  H01S3/00

Abstract: The present disclosure relates to a fiber encapsulation mechanism for energy dissipation in a fiber amplifying system. One example embodiment includes an optical fiber amplifier. The optical fiber amplifier includes an optical fiber that includes a gain medium, as well as a polymer layer that at least partially surrounds the optical fiber. The polymer layer is optically transparent. In addition, the optical fiber amplifier includes a pump source. Optical pumping by the pump source amplifies optical signals in the optical fiber and generates excess heat and excess photons. The optical fiber amplifier additionally includes a heatsink layer disposed adjacent to the polymer layer. The heatsink layer conducts the excess heat away from the optical fiber. Further, the optical fiber amplifier includes an optically transparent layer disposed adjacent to the polymer layer. The optically transparent layer transmits the excess photons away from the optical fiber.

公开(公告)号：US20190317503A1

公开(公告)日：2019-10-17

申请号：US16453401

申请日：2019-06-26

Applicant: Waymo LLC

Inventor： Pierre-Yves Droz ,  Caner Onal ,  William McCann ,  Bernard Fidric ,  Vadim Gutnik ,  Laila Mattos ,  Rahim Pardhan

IPC: G05D1/02 ,  G01S7/481 ,  G01S13/93 ,  G01S7/491 ,  G01S17/93 ,  G01S17/42 ,  G01S17/02 ,  G01S17/89

Abstract: Described herein is a LIDAR device that may include a transmitter, first and second receivers, and a rotating platform. The transmitter may be configured to emit light having a vertical beam width. The first receiver may be configured to detect light at a first resolution while scanning the environment with a first FOV and the second receiver may be configured to detect light at a second resolution while scanning the environment with a second FOV. In this arrangement, the first resolution may be higher than the second resolution, the first FOV may be at least partially different from the second FOV, and the vertical beam width may encompass at least a vertical extent of the first and second FOVs. Further, the rotating platform may be configured to rotate about an axis such that the transmitter and first and second receivers each move based on the rotation.

公开(公告)号：US20180254594A1

公开(公告)日：2018-09-06

申请号：US15972680

申请日：2018-05-07

Applicant: Waymo LLC

Inventor： Bernard Fidric ,  Daniel Rosenfeld ,  Rahim Pardhan

IPC: H01S3/04 ,  H01S3/16 ,  G02B6/255 ,  G02B6/02 ,  H01S3/067 ,  H01S3/094 ,  G01S17/02

CPC classification number: H01S3/0405 ,  G01S7/4818 ,  G01S17/02 ,  G01S17/10 ,  G02B6/02395 ,  G02B6/2551 ,  G02B6/2558 ,  H01S3/005 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/042 ,  H01S3/06704 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/06783 ,  H01S3/0804 ,  H01S3/094003 ,  H01S3/094007 ,  H01S3/094069 ,  H01S3/09415 ,  H01S3/1603 ,  H01S3/1608 ,  H01S3/1618 ,  H01S2301/03

Abstract: The present disclosure relates to a fiber encapsulation mechanism for energy dissipation in a fiber amplifying system. One example embodiment includes an optical fiber amplifier. The optical fiber amplifier includes an optical fiber that includes a gain medium, as well as a polymer layer that at least partially surrounds the optical fiber. The polymer layer is optically transparent. In addition, the optical fiber amplifier includes a pump source. Optical pumping by the pump source amplifies optical signals in the optical fiber and generates excess heat and excess photons. The optical fiber amplifier additionally includes a heatsink layer disposed adjacent to the polymer layer. The heatsink layer conducts the excess heat away from the optical fiber. Further, the optical fiber amplifier includes an optically transparent layer disposed adjacent to the polymer layer. The optically transparent layer transmits the excess photons away from the optical fiber.

公开(公告)号：US20180011196A1

公开(公告)日：2018-01-11

申请号：US15714326

申请日：2017-09-25

Applicant: Waymo LLC

Inventor： Gaetan Pennecot ,  Zachary Morriss ,  Samuel Lenius ,  Ionut Iordache ,  Daniel Gruver ,  Pierre-Yves Droz ,  Luke Wachter ,  Drew Ulrich ,  William Mccann ,  Rahim Pardhan ,  Bernard Fidric ,  Anthony Levandowski ,  Peter Avram

IPC: G01S17/93 ,  G01S17/87 ,  G01S17/10 ,  G01S17/89 ,  G01S7/481

CPC classification number: G01S17/93 ,  G01C3/02 ,  G01S7/4808 ,  G01S7/4813 ,  G01S7/4815 ,  G01S7/4816 ,  G01S7/4817 ,  G01S17/023 ,  G01S17/10 ,  G01S17/42 ,  G01S17/66 ,  G01S17/87 ,  G01S17/89 ,  G01S17/936

Abstract: A vehicle is provided that includes one or more wheels positioned at a bottom side of the vehicle. The vehicle also includes a first light detection and ranging device (LIDAR) positioned at a top side of the vehicle opposite to the bottom side. The first LIDAR is configured to scan an environment around the vehicle based on rotation of the first LIDAR about an axis. The first LIDAR has a first resolution. The vehicle also includes a second LIDAR configured to scan a field-of-view of the environment that extends away from the vehicle along a viewing direction of the second LIDAR. The second LIDAR has a second resolution. The vehicle also includes a controller configured to operate the vehicle based on the scans of the environment by the first LIDAR and the second LIDAR.

公开(公告)号：US09864063B2

公开(公告)日：2018-01-09

申请号：US15493066

申请日：2017-04-20

Applicant: Waymo LLC

Inventor： Daniel Gruver ,  Pierre-yves Droz ,  Gaetan Pennecot ,  Anthony Levandowski ,  Drew Eugene Ulrich ,  Zachary Morriss ,  Luke Wachter ,  Dorel Ionut Iordache ,  Rahim Pardhan ,  William McCann ,  Bernard Fidric ,  Samuel William Lenius

IPC: G01C3/08 ,  G01S17/93 ,  G01S17/87 ,  G01S17/89 ,  G01S7/481 ,  G01S17/10

CPC classification number: G01S17/93 ,  G01C3/02 ,  G01S7/4808 ,  G01S7/4813 ,  G01S7/4815 ,  G01S7/4816 ,  G01S7/4817 ,  G01S17/023 ,  G01S17/10 ,  G01S17/42 ,  G01S17/66 ,  G01S17/87 ,  G01S17/89 ,  G01S17/936

Abstract: A vehicle is provided that includes one or more wheels positioned at a bottom side of the vehicle. The vehicle also includes a first light detection and ranging device (LIDAR) positioned at a top side of the vehicle opposite to the bottom side. The first LIDAR is configured to scan an environment around the vehicle based on rotation of the first LIDAR about an axis. The first LIDAR has a first resolution. The vehicle also includes a second LIDAR configured to scan a field-of-view of the environment that extends away from the vehicle along a viewing direction of the second LIDAR. The second LIDAR has a second resolution. The vehicle also includes a controller configured to operate the vehicle based on the scans of the environment by the first LIDAR and the second LIDAR.

公开(公告)号：US20170219713A1

公开(公告)日：2017-08-03

申请号：US15493066

申请日：2017-04-20

Applicant: Waymo LLC

Inventor： Daniel Gruver ,  Pierre-yves Droz ,  Gaetan Pennecot ,  Anthony Levandowski ,  Drew Eugene Ulrich ,  Zachary Morriss ,  Luke Wachter ,  Dorel Ionut Iordache ,  Rahim Pardhan ,  William McCann ,  Bernard Fidric ,  Samuel William Lenius

IPC: G01S17/93 ,  G01S17/10 ,  G01S7/481 ,  G01S17/87 ,  G01S17/89

CPC classification number: G01S17/93 ,  G01C3/02 ,  G01S7/4808 ,  G01S7/4813 ,  G01S7/4815 ,  G01S7/4816 ,  G01S7/4817 ,  G01S17/023 ,  G01S17/10 ,  G01S17/42 ,  G01S17/66 ,  G01S17/87 ,  G01S17/89 ,  G01S17/936

Abstract: A vehicle is provided that includes one or more wheels positioned at a bottom side of the vehicle. The vehicle also includes a first light detection and ranging device (LIDAR) positioned at a top side of the vehicle opposite to the bottom side. The first LIDAR is configured to scan an environment around the vehicle based on rotation of the first LIDAR about an axis. The first LIDAR has a first resolution. The vehicle also includes a second LIDAR configured to scan a field-of-view of the environment that extends away from the vehicle along a viewing direction of the second LIDAR. The second LIDAR has a second resolution. The vehicle also includes a controller configured to operate the vehicle based on the scans of the environment by the first LIDAR and the second LIDAR.