OPTICAL PROTECTION AND SWITCH ENABLED OPTICAL REPEATING
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United States of America Patent
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N/A
Issued Date -
Nov 22, 2012
app pub date -
May 9, 2012
filing date -
May 16, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An optical transmission system or its constituent repeater disposed optically between two terminals. The system includes at least two parallel optical paths between a first node and the repeater (one optical path being used as a backup for another), and another at least two parallel optical paths between a second node and the repeater (again, one optical path being used as a backup for another). The first nodes may, but need not, be terminals, but could also be repeaters, or other optical elements. For a signal traveling from the first terminal to the second terminal, the optical switching mechanism detects which of the at least two parallel optical paths an optical signal is being received from the first node, and channels the optical signal to at least one of the parallel optical paths leading from the repeater to the second node.
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