发明名称 |
Coherent optical heterodyne transmission system |
摘要 |
A bidirectional coherent optical transmission system comprises two stations (I and II) each having only a single laser (2, 9), part of the light signal generated by the laser being fed to a glass fibre T and another part of the light signal generated by the laser being used for mixing the received light signal down to an intermediate frequency by means of a photoelectric diode (4, 11). In contradistinction to the prior art transmission system, in the system according to the invention the light signal is modulated by applying a modulation signal to each of the lasers (2, 9).
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申请公布号 |
US5267074(A) |
申请公布日期 |
1993.11.30 |
申请号 |
US19920942124 |
申请日期 |
1992.09.08 |
申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
KLUITMANS, JOHANNES T. M.;HOOIJMANS, PIETER W.;VAN DE GRIJP, ABRAM |
分类号 |
H04B10/24;H04J14/02;(IPC1-7):H04B10/00;H04B10/06;H04B10/04 |
主分类号 |
H04B10/24 |
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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