发明名称 |
Optical communication system |
摘要 |
A high speed optical receiver for receiving a substantially diminished optical signal. An optical amplifier amplifies the diminished optical signal at least several db and an ultra narrow-band filter filters the noise generated in the optical amplifier to produce a filtered amplified optical signal which is detected by a fast response photo detector. In a preferred embodiment the optical amplifier is a semiconductor laser amplifier. In this embodiment a Faraday filter provides the ultra narrow-band filtering, virtually eliminating the noise produced by the amplifier. Transmitters are described for transmitting information at a wavelength tuned to the ultra narrow-band filters.
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申请公布号 |
US6191878(B1) |
申请公布日期 |
2001.02.20 |
申请号 |
US19970921812 |
申请日期 |
1997.09.02 |
申请人 |
SPIVEY BRETT;MENDERS JAMES |
发明人 |
SPIVEY BRETT;MENDERS JAMES |
分类号 |
H04B10/10;H04B10/105;H04B10/158;(IPC1-7):H04B10/06 |
主分类号 |
H04B10/10 |
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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