Method for controlling the signal/noise ratio of optical...

Details Method for controlling the signal/noise ratio of optical... Method for controlling the signal/noise ratio of optical...

2005-04-26

2005-04-26

Sedighian, M. R. (Department: 2633)

Optical communications

Diagnostic testing

Determination of communication parameter

C398S016000, C398S025000, C398S031000, C398S038000, C398S083000

Reexamination Certificate

active

06885820

ABSTRACT:
A method and apparatus for controlling the signal
oise ratio of optical add/drop signals in an optical WDM transmission system having a transmitter unit, a receiver unit and at least one optical add/drop multiplexer for transmitting optical express signals and at least one optical add/drop signal wherein the power spectrum of the pre-emphasized express signals is determined, and the signal level of the at least one optical add/drop signal is adapted to the power spectrum determined for the express signals.

REFERENCES:
patent: 0 543 570 (1993-05-01), None
End to End Equalization Experiments in Amplified WDM Lightwave Systems, Chraplyvy, p. 426.
Equalization in Amplified WDM Lightwave Transmission Systems, Chraplyvy et al, pp. 920-921.

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