Optical transmission system with dynamic compensation of the pow

Details Optical transmission system with dynamic compensation of the pow Optical transmission system with dynamic compensation of the pow

1998-05-28

2000-03-28

Hellner, Mark

Optical: systems and elements

Optical amplifier

Optical fiber

359161, H01S 300

Patent

active

060439319

ABSTRACT:
The invention relates to an optical transmission system comprising a transmission line which includes at least one optical fiber amplifier. According to the invention, a stabilized gain optical amplifier is coupled to the input of the line, said stabilized gain amplifier including a local oscillator suitable for emitting an auxiliary compensation wave at a wavelength .lambda.loc which lies in the gain band of each optical fiber amplifier of the line. Provision is also made to modulate the pumping current of said stabilized gain amplifier to convey service information. The invention is applicable to optical transmission.

REFERENCES:
patent: 5793512 (1998-08-01), Ryu
R. Schnabel et al, "Wavelength Conversion and Switching of High Speed Data Signals Using Semiconductor Laser Amplifiers", Electronics Letters, vol. 29, No. 23, Nov. 11, 1993, pp. 2047-2048.

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