Optical communications – Diagnostic testing – Determination of communication parameter
Reexamination Certificate
2011-04-12
2011-04-12
Bello, Agustin (Department: 2613)
Optical communications
Diagnostic testing
Determination of communication parameter
C398S027000, C398S030000, C398S072000
Reexamination Certificate
active
07925156
ABSTRACT:
Apparatus and method to measure the quality of burst signals and to perform optical line diagnostics in and optical passive optical network (PON). Statistical information about phase noise (jitter), signal distortion, clock distortions, and any other effects present in burst signals is generated. The statistics are based on phase and bit-length distortions, direction and length of the effect as detected by a phase error detector integrated in a burst mode clock and data recovery (BCDR) circuit. The invention can be further adapted to perform optical line diagnostics to detect the root cause performance degradation and failures in the PON, thereby providing an optical layer supervision tool for monitoring the PON. The statistical information can be used to estimate the quality of service (QoS) per customer connected to the PON. In addition, the generated statistic information can be used to calibrate transmission parameters of optical network unit (ONU) transmitters.
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Avishai David
Dvir Amiad
Elkanovich Igor
Elmoalem Eli
Goldstein Alex
Bello Agustin
Broadlight Ltd.
Myers Wolin LLC
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