Gain and noise tilt control in multi-wavelength bi-directionally pumped Raman amplifier

Author

Kado, Soko ; Emori, Yoshihiro ; Namiki, Shu

Author_Institution

Fitel Photonics Lab., Furukawa Electr. Co. Ltd., Chiba, Japan

fYear

2002

fDate

17-22 Mar 2002

Firstpage

62

Lastpage

63

Abstract

We proposed an optimized bi-directional pumping scheme that realized a good flatness of Raman gain and variety of optical noise figure spectra, simultaneously. We used previously developed low-noise pump lasers for forward-pumping. By means of the proposed scheme comprising five pump wavelengths, about 2.3 dB variation of wavelength dependence of noise figure are demonstrated at a fixed flat Raman gain of 9 dB for 76 km of single mode fibre.

Keywords

Raman lasers; laser noise; optical communication equipment; optical fibre amplifiers; optical pumping; optimisation; wavelength division multiplexing; 76 km; 9 dB; Raman gain; fixed flat Raman gain; forward-pumping; good flatness; low-noise pump lasers; multi-wavelength bi-directionally pumped Raman amplifier; noise figure; noise tilt control; optical fibre amplifiers; optical noise figure spectra; optimized bi-directional pumping scheme; pump wavelengths; single mode fibre; wavelength dependence; Bidirectional control; Fiber lasers; Laser excitation; Laser modes; Laser noise; Noise measurement; Optical amplifiers; Optical noise; Pump lasers; Stimulated emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002

Print_ISBN

1-55752-701-6

Type

conf

DOI

10.1109/OFC.2002.1036204

Filename

1036204