Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1997-09-11
1999-12-21
Bacares, Rafael
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359135, 359139, 370367, H04B 1020
Patent
active
060056991
ABSTRACT:
An optical transmission system accomplishes optical transmission to 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 to 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-to-electric converter by an optic-to-electric converter having an avalanche photodiode as light receiver, an with no use of any optical booster amplifier and optical preamplifier in the multiplexing line terminal. With these, the optical transmission system can be easily constructed depending on the transmission distance required.
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Aoki Satoshi
Ashi Yoshihiro
Kazawa Toru
Matsuda Hironari
Nakano Hiroyuki
Bacares Rafael
Hitachi , Ltd.
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