Methods and apparatus for monitoring optical transmissions
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United States of America Patent
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N/A
Issued Date -
Jan 1, 2004
app pub date -
Jun 26, 2002
filing date -
Jun 26, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Techniques for monitoring optical transmissions between an optical transmitter and an optical receiver are described. A transmitter monitor is coupled to an optical transmitter and detects light, such as reflected light, conducted into the transmitter by an optical cable conveying light between the transmitter and the receiver. The transmitter monitor produces a signal providing information about the light conducted into the transmitter and adjustments are made to the transmitter operation based on the signal. A receiver monitor coupled to an optical receiver detects light conducted into the receiver by the optical cable. The receiver monitor produces a receiver monitor signal providing information about the light and adjustments are made to the receiver operation based on the signal. In addition, an optical signal is sent to the transmitter based on the receiver monitor signal, and the optical signal is used by the transmitter monitor to direct adjustments to the transmitter operation.
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