Optical communications – Diagnostic testing – Determination of communication parameter
Reexamination Certificate
2005-10-04
2005-10-04
Pascal, Leslie (Department: 2633)
Optical communications
Diagnostic testing
Determination of communication parameter
C398S025000, C398S033000, C398S038000
Reexamination Certificate
active
06952529
ABSTRACT:
An apparatus and method for measuring optical signal to noise ratio (OSNR) in a node of an optical data network is disclosed. A peak power level and an average power level are measured for an optical input to an optical detector. The OSNR is determined by selecting an OSNR having the peak power level and the average power level associated with an optical signal traversing an optical path having attenuation and optical amplifier noise.
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Bhumralkar Shailendra
Cammarata Michael R.
Ciena Corporation
Pascal Leslie
Van Gieson Edward A.
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