Title:
速いマルチビーム自由空間光通信装置
Document Type and Number:
Japanese Patent JP3756152
Kind Code:
B2
Abstract:
An electronically agile multi-beam optical transceiver has a first crossbar switch, that switches input signals to selected ones of a spatial array of light emitters. The light emitters supply modulated light beams to spatial locations of a telecentric lens, which geometrically transforms the beams along different divergence paths, in accordance with displacements from the lens axis of the light emitter elements within the spatial array. Light beams from remote sites incident on a divergence face of the telecentric lens are deflected to a photodetector array, outputs of which are coupled to a second crossbar switch. An auxiliary photodetector array monitors optical beams from one or more sites whose spatial locations are known, and supplies spatial error correction signals for real-time pointing and tracking and atmospheric correction.
Inventors:
O'Reilly, Michael
Presley, harry
Presley, harry
Application Number:
JP2002566689A
Publication Date:
March 15, 2006
Filing Date:
February 05, 2002
Export Citation:
Assignee:
Harris Corporation
International Classes:
H04B10/10; H04B10/118; H04B10/22; H04Q11/00
Domestic Patent References:
| JP3109837A | ||||
| JP11068665A | ||||
| JP11346192A |
Foreign References:
| WO2000048338A1 |
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Shinsuke Onuki
Tadashige Ito