Title :
High-power and low-RIN lasers for advanced first- and higher order Raman copumping
Author :
Bolognini, Gabriele ; Faralli, Stefano ; Chiuchiarelli, Andrea ; Falconi, Fabio ; Di Pasquale, Fabrizio
Author_Institution :
Scuola Superiore Sant´´Anna, Universitari e Perfezionamento, Pisa
Abstract :
We propose a novel high-power (up to 1.9 W) and low relative intensity noise (RIN) laser structure for effective first- and higher order distributed Raman copumping. RIN characterization and bit-error-rate measurements at 10 Gb/s point out RIN-penalty free transmission up to 25 dB of on-off copropagating Raman gain. This new copumping technology can provide sensible span reach enhancement in long-span unrepeated WDM transmission systems in a simple and effective way
Keywords :
Raman lasers; error statistics; laser noise; optical communication equipment; optical fibre amplifiers; optical fibre communication; optical pumping; wavelength division multiplexing; 1.9 W; 10 Gbit/s; RIN-penalty free transmission; bit-error-rate measurements; distributed Raman copumping; first-order Raman copumping; high-power laser; higher-order Raman copumping; long-span WDM transmission systems; low-relative intensity noise laser; on-off copropagating Raman gain; optical fibre amplifiers; relative intensity noise characterization; span reach enhancement; unrepeated WDM transmission systems; Fiber lasers; Laser excitation; Optical fiber polarization; Optical noise; Power lasers; Pump lasers; Semiconductor lasers; Signal to noise ratio; Stimulated emission; Wavelength division multiplexing; Optical communication systems; Raman amplifiers; relative intensity noise (RIN); wavelength-division-multiplexed (WDM) transmission systems;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.877624
