发明名称 |
FREE SPACE OPTICAL COMMUNICATIONS |
摘要 |
<p>An optical communications terminal, comprising: an optical telescope (e.g. a dual mirror Ritchie-Chretien telescope); a transmitter unit including at least one transmitter coupled to source of optical signals; a receiver unit for receiving optical signals; an optical system defining a transmit optical path between the optical telescope and the transmitter unit, and defining a receive optical path between the optical telescope and the receiver unit; and a beacon detector for detecting beacon optical signals received at the optical telescope; characterised in that a beacon optical path between the optical telescope and the beacon detector comprises at least a portion of said transmit optical path and/or said receive optical path. In one embodiment, the transmitter unit, receiver unit and beacon detector are disposed at or adjacent the focal plane of the optical telescope, providing a compact arrangement suitable for usage in diverse environments (e.g. aircraft- or satellite-borne, as well as ground-based). In another aspect of the invention there is disclosed an optical communications terminal in which the transmitter unit comprises a plurality of transmitters, each transmitter being coupled to a respective source of optical signals. An optical free space communications system comprising two such coupled terminals is also disclosed.</p> |
申请公布号 |
WO2005050878(A1) |
申请公布日期 |
2005.06.02 |
申请号 |
WO2004EP13042 |
申请日期 |
2004.11.17 |
申请人 |
MEDIA LARIO S.R.L.;MARIONI, FABIO;VALENZUELA, ARNOLDO |
发明人 |
MARIONI, FABIO;VALENZUELA, ARNOLDO |
分类号 |
H04B10/112;(IPC1-7):H04B10/10 |
主分类号 |
H04B10/112 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|