公开(公告)号：US09762325B2

公开(公告)日：2017-09-12

申请号：US14651894

申请日：2013-12-13

Applicant: BAE SYSTEMS plc

Inventor： David John Aitken ,  Simon Charles Giles ,  Robert John Mark Longstone ,  Mohammed Nawaz ,  Andrew James Smith ,  Michael Andrew Scott

IPC: H04B10/00 ,  H04B10/2575 ,  G02B6/36 ,  H01Q3/26 ,  H04B10/80 ,  H04B10/516

CPC classification number: H04B10/25752 ,  G02B6/3604 ,  H01Q3/2676 ,  H04B10/516 ,  H04B10/801

Abstract: An optical signal transmission apparatus (1) for a rotating antenna comprising a plurality of optical modulators (6) arranged for receiving a respective plurality of analog RF signals (5) and for modulating a respective plurality of optical signals therewith to produce a plurality of modulated analog optical signals (8). A plurality of opto-electrical converters (14) each converts a respective modulated analog optical signal (13) into an analog electrical signal. The plurality of optical modulators (6) are rotationally coupled in optical communication with the plurality of opto-electrical converters (14) via an optical rotary joint (10) including a reversion prism.