Optical transmission system constructing method and system
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United States of America Patent
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Nov 6, 2007
Grant Date -
Mar 8, 2007
app pub date -
Nov 7, 2006
filing date -
Apr 8, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An optical transmission system accomplishes optical transmission over a long distance by combining a multiplexing line terminal with optical amplifiers, linear repeaters, and regenerators with optical amplifiers combined together. The system also accomplishes the optical transmission over a short distance by directly connecting the linear terminals therebetween, with an electric-to-optic converter replaced by an electric-to-optic converter having a semiconductor amplifier, with an optic-toelectric converter by an optic-to-electric converter having an avalanche photodiode as light receiver, and with no use of any optical booster amplifier and optical preamplifier in multiplexing line terminal. With these, the optical transmission system can be easily constructed depending on the transmission distance required.
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