Optical communications – Diagnostic testing – Determination of communication parameter
Reexamination Certificate
2007-04-19
2010-11-02
Tran, Dzung D (Department: 2613)
Optical communications
Diagnostic testing
Determination of communication parameter
C398S025000, C398S027000
Reexamination Certificate
active
07826740
ABSTRACT:
A system and method for an Avalanche photo-diode (“APD”) optical receiver and laser system to adjust its performance during system operation without disturbing network traffic. Very small changes may be adaptively applied to some key portions of the system by controlling a set of main system parameters including Q-factor; Bit Error Rate (BER); histograms of “1” and “0” levels; input optical power; and laser output power. This adaptive routine may be performed during operation of the system to keep the main system parameters close to their optimum value. During adjustment, the system may be divided into separate portions. The adjustment of each portion may be independent of the other portions of the system. For the optical network system, optimization and priority of different portions may be assigned based on network channel architecture.
REFERENCES:
patent: 2004/0008996 (2004-01-01), Aronson et al.
patent: 2005/0078916 (2005-04-01), Hosking
patent: 2005/0201431 (2005-09-01), Hofmeister et al.
patent: 2005/0207696 (2005-09-01), Welch et al.
patent: 2007/0053688 (2007-03-01), Benz et al.
Fediakine Nikolai
Kaku Shinkyo
Tikhonov Vitali
Allied Telesis Inc.
Arent & Fox LLP
Tran Dzung D
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