Title :
Optimization of broadband Raman amplification in ultra-long-haul DWDM transmissions
Author_Institution :
Lucent Technol. Bell Labs, Holmdel, NJ, USA
Abstract :
Summary form only given. Raman amplification (RA) with multiple pump wavelengths allows broadband amplification. Gain flattening over the entire signal band is required in ultra-long-haul (ULH) dense wavelength division multiplexed (DWDM) transmissions. Peak-to-peak gain ripple of <0.5 dB can be obtained. To fully take the advantage of RA in ULH DWDM dispersion-managed transmissions, span fibers can be bi-directionally pumped and dispersion-compensating fibers (DCF) backward pumped.
Keywords :
Raman lasers; optical communication equipment; optical fibre amplifiers; optical fibre dispersion; wavelength division multiplexing; DWDM dispersion-managed transmissions; backward pumped dispersion-compensating fibers; bi-directionally pumped span fibers; broadband Raman amplification optimization; fiber amplifiers; gain flattening; multiple pump wavelengths; peak-to-peak gain ripple; ultra-long-haul DWDM transmissions; Bandwidth; Crosstalk; Erbium-doped fiber amplifier; Interference; Optical noise; Optical pumping; Q factor; Signal to noise ratio; Stimulated emission; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics, 2002. CLEO '02. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Long Beach, CA, USA
Print_ISBN :
1-55752-706-7
DOI :
10.1109/CLEO.2002.1034225
