发明名称 |
TRANSMITTER AND TRANSCEIVER FOR A COHERENT OPTICAL SYSTEM |
摘要 |
An optical transmitter having a single optical source (10) coupled to a modulator (14) for providing an information modulated signal and an optical amplifier (13) for providing an amplified phase reference signal which signals are combined by a coupler (15) for onward transmission. Duplex operation of a travelling wave optical amplifier 13 facilitates the implementation of a coherent optical transceiver 22 with a single optical amplifier (13). A separate reference signal oscillator, therefore, is not required at a remote receiver. The bi-directional amplifier 13 also amplifies the incoming signal, removing the need for a separate dedicated amplifier before the receive (11). The transceiver may be adapted for homodyne or heterodyne operation. |
申请公布号 |
AU598126(B2) |
申请公布日期 |
1990.06.14 |
申请号 |
AU19880015782 |
申请日期 |
1988.04.14 |
申请人 |
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY |
发明人 |
IAN WILLIAM STANLEY |
分类号 |
H04B10/04;H04B10/06;H04B10/14;H04B10/142;H04B10/152;H04B10/17;H04B10/26;H04B10/28;(IPC1-7):H04B9/00 |
主分类号 |
H04B10/04 |
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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