发明名称 |
Testing and adjusting optical transmission circuits by sending reference signal through couplers and optical fibre circuits to reflector, detecting reflected signal and using it to correct transmitters |
摘要 |
A test transmitter (E) and test receiver (R) are coupled (C) through an optical fibre (F1) to a rotating optical joint (JT) and to a reflector (Fr). A standard signal (Sr) modulates the test transmitter (E) and the reflected signal (Sd) is received (R) and detected (CT). When the rotating joint (JT) is turning at a constant speed the detected reflected signal may be used to correct other transmitters (En) for the effect of the rotating joint.
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申请公布号 |
FR2786869(A1) |
申请公布日期 |
2000.06.09 |
申请号 |
FR19980015355 |
申请日期 |
1998.12.04 |
申请人 |
THOMSON CSF |
发明人 |
D'AURIA LUIGI;FORMONT STEPHANE;AUVRAY GERARD |
分类号 |
G01M11/00;H04B10/00;(IPC1-7):G01M11/02;H04B10/12 |
主分类号 |
G01M11/00 |
代理机构 |
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代理人 |
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