Title :
Optimizing the noise performance of broad-band WDM systems with distributed Raman amplification
Author :
Perlin, Victor E. ; Winful, Herbert G.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
Abstract :
We derive the fundamental limit for the ratio of path-averaged signal power to optical signal-to-noise ratio (OSNR), and show that for a fixed nonlinear weight, the OSNR is maximized if the signal power variation along the fiber is minimal. We also derive the conditions under which the noise performance of Raman amplification can be improved by erbium-doped fiber amplifier post amplification.
Keywords :
Raman lasers; laser noise; optical fibre amplifiers; optical fibre communication; optimisation; wavelength division multiplexing; Raman amplification; broad-band WDM systems; distributed Raman amplification; erbium-doped fiber amplifier post amplification; fixed nonlinear weight; fundamental limit; noise performance; noise performance optimisation; optical signal-to-noise ratio; path averaged signal power; signal power variation; Erbium-doped fiber amplifier; Noise figure; Optical attenuators; Optical fiber polarization; Optical fibers; Optical noise; Raman scattering; Signal to noise ratio; Stimulated emission; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.1022017
