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公开(公告)号：US10164757B2
公开(公告)日：2018-12-25
申请号：US15523166
申请日：2015-10-26
Applicant: BAE SYSTEMS plc
Inventor： Stephen Derek Finch , Matthew Robert Gore , Duncan Peter Rowe
Abstract: Communication apparatus comprises a first transceiver unit (205A) and a signal processing device (106) configured to receive a signal from the first transceiver unit and to produce a signal for transmission by the first transceiver unit. A cable (201A) connects the first transceiver unit to the signal processing device. The first transceiver unit comprises a housing; a first pair of transducers (204T, 204R) located at, or adjacent, a first end of the housing, and a second set of transducers (206T, 206R) located at, or adjacent, an opposite end of the housing.
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公开(公告)号：US11463168B2
公开(公告)日：2022-10-04
申请号：US17415984
申请日：2019-12-10
Applicant: BAE SYSTEMS plc
Inventor： Stephen Derek Finch , Michael Stewart Griffith , Andrew James Williams
IPC: H04B10/00 , H04B10/118 , H04B10/112
Abstract: A multi-aperture free-space optical communications receiver comprises a plurality of telescopes each having a clear objective aperture with a diameter between 50 mm and 250 mm and arranged for receiving light collectively from an optical communications light source. A coherent combiner unit is configured for coherently combining the collectively received light to produce a combined optical signal therewith. Each telescope is arranged in association with, respectively, a wavefront detector to determine a wavefront of said received light directed to it by the respective telescope, a steerable reflector unit including a deformable mirror controllable to deform according to said determined wavefront such that said received light is reflected by the deformable mirror with a modified wavefront, and an optical signal receiver comprising a single-mode optical fibre. The steerable reflector unit is steerable to input received light with modified wavefront into the single-mode optical fibre for reception by the optical signal receiver.
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公开(公告)号：US20220077929A1
公开(公告)日：2022-03-10
申请号：US17415984
申请日：2019-12-10
Applicant: BAE SYSTEMS plc
Inventor： Stephen Derek Finch , Michael Stewart Griffith , Andrew James Williams
IPC: H04B10/118 , H04B10/112
Abstract: A multi-aperture free-space optical communications receiver comprises a plurality of telescopes each having a clear objective aperture with a diameter between 50 mm and 250 mm and arranged for receiving light collectively from an optical communications light source. A coherent combiner unit is configured for coherently combining the collectively received light to produce a combined optical signal therewith. Each telescope is arranged in association with, respectively, a wavefront detector to determine a wavefront of said received light directed to it by the respective telescope, a steerable reflector unit including a deformable mirror controllable to deform according to said determined wavefront such that said received light is reflected by the deformable mirror with a modified wavefront, and an optical signal receiver comprising a single-mode optical fibre. The steerable reflector unit is steerable to input received light with modified wavefront into the single-mode optical fibre for reception by the optical signal receiver.
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