METHOD OF CONTROLLING OPTICAL SIGNAL-TO-NOISE RATIO OF FIBRE-OPTIC DATA LINE USING RAMAN AMPLIFICATION Russian patent published in 2011 - IPC H04B10/17

Abstract RU 2427081 C2

FIELD: physics.

SUBSTANCE: method of selecting the ratio between direct Raman amplification (DRA) factor G_f at the transmitting end of a fibre-optic transmission line and the optical signal-to-noise ratio (OSNR) at the receiving end of the fibre-optic transmission line which meets restrictions for real long lines. According to the method, the ratio is selected using a R_OSNR control function. The function has the form of either a simplified equation or the form of one or more linear approximation functions for practical ranges of the DRA factor.

EFFECT: easy and efficient estimation of the required DRA in order to obtain the design value of OSNR and efficient OSNR control.

15 cl, 7 dwg

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RU 2 427 081 C2

Authors

Likhtman Ehjal

Dates

2011-08-20—Published

2007-03-08—Filed