发明名称 |
Receiving system having a large dynamic range. |
摘要 |
An optical probe (23) receives a laser beam from a laser (21) and an input signal (I) with an input signal intensity and an input amplitude to produce a permeating beam having a beam intensity which is varied in response to the input signal intensity. A receiving device (27) receives an electric signal having a converted amplitude from a photoelectric converter (25) which converts the permeating beam into the electric signal. Supplied with the electric signal, a feedback control device (35) produces a feedback control signal. A laser control device (37) controls the laser in response to the feedback control signal so that the converted amplitude is approximately equal to a constant amplitude regardless of the input amplitude. The laser control device may control the laser so that the beam intensity is approximately equal to a constant beam intensity regardless of the input amplitude. <IMAGE>
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申请公布号 |
EP0668670(A1) |
申请公布日期 |
1995.08.23 |
申请号 |
EP19950101512 |
申请日期 |
1995.02.03 |
申请人 |
TOKIN CORPORATION |
发明人 |
FUNAKI, HIDEFUMI, C/O TOKIN CORPORATION |
分类号 |
G01R19/00;H04B10/07;H04B10/293;H04B10/40;H04B10/50;H04B10/516;H04B10/564;H04B10/572;H04B10/60;H04B10/69;(IPC1-7):H04B10/04;H04B10/145 |
主分类号 |
G01R19/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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