Optical network system with quality control function

Details Optical network system with quality control function Optical network system with quality control function

2006-01-24

2006-01-24

Chan, Jason (Department: 2633)

Optical communications

Diagnostic testing

Test signal

C396S026000, C396S027000, C396S034000

Reexamination Certificate

active

06990294

ABSTRACT:
To ensure transmission in a flexible optical network system, a digital test signal generation/comparison circuit is incorporated in an electrical signal processing portion of a transponder. The optical network system provides transparent wavelength-division multiplex service regardless of the signal type in client optical signals. Prior to connecting a client optical line to the optical system, a selective insertion unit and a selective extraction unit enable quality assessment of the client optical line.

REFERENCES:
patent: 5235645 (1993-08-01), Stocker
patent: 5392289 (1995-02-01), Varian
patent: 6480308 (2002-11-01), Yoshida et al.
patent: 2003/0147585 (2003-08-01), Kikuchi et al.

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