Optical coupling with a test port
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United States of America Patent
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Jan 1, 2008
Grant Date -
N/A
app pub date -
Jun 25, 2002
filing date -
Jun 25, 2002
priority date (Note) -
Expired
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Abstract
An optical coupler comprises a first, second, third, and fourth port. The first port is for communicating optical signals with a processor. The second port receives a first optical signal and transmits the first optical signal to the first port. The third port receives a second optical signal and transmits the second optical signal to the first port. The fourth port receives a third optical signal and transmits the third optical signal to the first port.
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