Method and apparatus for controlling received power levels within a free space optical communication system
US6643467B1 · kind B1 · utility
8Cited by
6References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2000 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Oct 5, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/1121
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A free space optical communication system is disclosed whereby the received power at the receive optical fiber is reduced by adjusting the transmitted light beam and/or the receive optical fiber with respect to each other when a specified power threshold is exceeded. This reduction in received power is achieved by either increasing the cross section of the transmitted beam relative to the receive telescope or, alternatively, moving the receive optical fiber and thereby enlarge the cross section of the received beam incident upon the receive optical fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.