发明名称 |
High-sensitivity, high-speed digital optical photoreceiver |
摘要 |
An optical receiver for receiving a signal from an optical fiber in a fiber-optic digital transmission system that includes a first low noise optical amplifier to amplify an input optical signal. The first low noise optical amplifier has an input 3 dB compression point lower than the desired system input sensitivity at a desired bit rate. A high power optical amplifier further amplifies the amplified optical signal, and has an automatic gain control for output signal leveling at a desired operation point of the transmission system. A high current photodetector converts the further amplified optical signal from the high power optical amplifier to an electrical signal that drives a retiming circuit without requiring further amplification of the electric signal.
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申请公布号 |
US6384948(B1) |
申请公布日期 |
2002.05.07 |
申请号 |
US19980163397 |
申请日期 |
1998.09.30 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY |
发明人 |
WILLIAMS KEITH J.;ESMAN RONALD D.;VILLARRUEL CARL A.;DENNIS MICHAEL L.;DULING, III IRL N. |
分类号 |
H01S3/067;H04B10/158;(IPC1-7):H01S3/00 |
主分类号 |
H01S3/067 |
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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