Title:
コヒーレント重畳受信中における2光波のアライメント制御のための方法および装置
Document Type and Number:
Japanese Patent JP4015724
Kind Code:
B2
Abstract:
The method involves supplying an information wave (20) to a reception telescope (21). Light from a local laser (24) is superimposed onto the information wave (20). After this mixing, the information light (20) is divided by a beam splitter (23,25) into two approximately identical beam components. The beam components are each sent to a detector (28,29) to generate at least one spatial error signal. The detector includes at least two detector halves. The beam shaping of the local laser (24) is such that the shape of the field distribution of the laser beam over the two detector halves is approximately equal to the field distribution provided for this beam component, in these detector halves.
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Inventors:
Edgar Fisher
Bernhard Wundernote
Bernhard Wundernote
Application Number:
JP21627097A
Publication Date:
November 28, 2007
Filing Date:
August 11, 1997
Export Citation:
Assignee:
Oerlikon Space AG
International Classes:
G02F2/00; H04B10/112; H04B10/60
Domestic Patent References:
| JP7327010A | ||||
| JP57102615A | ||||
| JP8149076A | ||||
| JP5336044A |
Foreign References:
| US5030004 |
Attorney, Agent or Firm:
Aoyama Aoi