公开(公告)号：US10439716B2

公开(公告)日：2019-10-08

申请号：US15704614

申请日：2017-09-14

Applicant: Facebook, Inc.

Inventor： Eric Douglas Miller ,  Kevin Michael Birnbaum ,  Chien-Chung Chen ,  Andrew Todd Grier

IPC: H04B10/00 ,  H04B10/116 ,  G01B11/27 ,  H04B10/114 ,  G02B27/10 ,  H04B10/50 ,  H04B10/54 ,  H04B10/40 ,  G02B26/08 ,  H04B10/112 ,  H04J14/08 ,  H04J14/00 ,  H04B10/516

Abstract: A compact system for active co-boresight measurement includes a detector, a steering mirror, and a controller. The detector detects a portion of a transmission beam emitted by a transceiver and a portion of a received beam that is received from a remote terminal. The controller measures an offset between the detected portion of the received beam and the detected portion of the transmission beam. The controller controls a position of the steering mirror to align the portion of the received beam with a defined position on the detector, the defined position based in part on the offset.

公开(公告)号：US20190081703A1

公开(公告)日：2019-03-14

申请号：US15704614

申请日：2017-09-14

Applicant: Facebook, Inc.

Inventor： Eric Douglas Miller ,  Kevin Michael Birnbaum ,  Chien-Chung Chen ,  Andrew Todd Grier

IPC: H04B10/116 ,  G01B11/27 ,  H04B10/114 ,  G02B27/10 ,  G02B26/08 ,  H04B10/50 ,  H04B10/54 ,  H04B10/40

Abstract: A compact system for active co-boresight measurement includes a detector, a steering mirror, and a controller. The detector detects a portion of a transmission beam emitted by a transceiver and a portion of a received beam that is received from a remote terminal. The controller measures an offset between the detected portion of the received beam and the detected portion of the transmission beam. The controller controls a position of the steering mirror to align the portion of the received beam with a defined position on the detector, the defined position based in part on the offset.

公开(公告)号：US10298325B1

公开(公告)日：2019-05-21

申请号：US15995457

申请日：2018-06-01

Applicant: Facebook, Inc.

Inventor： Kevin Michael Birnbaum ,  Harvard Keese Harding, Jr. ,  Eric Douglas Miller

IPC: G02B26/08 ,  G02B27/28 ,  H04B10/40 ,  H04B10/50 ,  H04B10/112

Abstract: An optical transceiver for controlling a steering angle between a receive light beam and a transmit light beam includes an optical beam coupling device. The optical beam coupling device comprises a plurality of optical elements configured to control a steering angle between the receive light beam received by the optical beam coupling device along a first line of sight (LOS) and the transmit light beam that is output from the optical beam coupling device along a second LOS different from the first LOS, wherein both the receive light beam and the transmit light beam pass through the plurality of optical elements. The plurality of optical elements have a set of combinations for different positions of each of the optical elements, wherein each position in the set of combinations induces a different steering angle between the transmit light beam and the receive light beam.

公开(公告)号：US10887014B1

公开(公告)日：2021-01-05

申请号：US16379020

申请日：2019-04-09

Applicant: Facebook, Inc.

Inventor： Kevin Michael Birnbaum ,  Harvard Keese Harding, Jr. ,  Eric Douglas Miller

IPC: H04B10/112 ,  H04B10/50 ,  G02B26/08 ,  H04B10/40 ,  G02B27/28

Abstract: An optical transceiver for controlling a steering angle between a receive light beam and a transmit light beam includes an optical beam coupling device. The optical beam coupling device comprises a plurality of optical elements configured to control a steering angle between the receive light beam received by the optical beam coupling device along a first line of sight (LOS) and the transmit light beam that is output from the optical beam coupling device along a second LOS different from the first LOS, wherein both the receive light beam and the transmit light beam pass through the plurality of optical elements. The plurality of optical elements have a set of combinations for different positions of each of the optical elements, wherein each position in the set of combinations induces a different steering angle between the transmit light beam and the receive light beam.

公开(公告)号：US20190078858A1

公开(公告)日：2019-03-14

申请号：US15704608

申请日：2017-09-14

Applicant: Facebook, Inc.

Inventor： Eric Douglas Miller ,  Kevin Michael Birnbaum ,  Chien-Chung Chen ,  Andrew Todd Grier

IPC: F41G3/32 ,  G01S7/497 ,  G01B11/26

Abstract: A system for active co-boresight measurement includes a detector, first and second steering mirrors, and a controller. The detector detects a portion of a transmission beam emitted by a transmitter and a portion of a received beam received from a remote terminal. The controller instructs the first steering mirror to scan the detected portion of the received beam to determine an alignment position. The controller controls a position of the first steering mirror to align the portion of the received beam with the alignment position on the detector, and controls a position of the second steering mirror to align the detected portion of the transmission beam with a defined position on the detector. The detected portion of the received beam at the alignment position and the detected portion of the transmission beam at the defined position correspond to the received beam and the transmission beam being aligned.