Title :
Suppression of stimulated Brillouin scattering induced by the compensating signal in all-optical gain-clamped EDFA
Author :
Chen, Yiran ; Zhang, Lun ; Jiang, Zhi ; Yu, Qian ; Fan, Chongcheng
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
In an all-optical link-controlled wavelength-division multiplexing system, the compensating signal generated by a ring-laser structure in the first EDFA may induce strong stimulated Brillouin scattering (SBS) through intermittent bursts of single longitudinal mode oscillation. However, it can be suppressed effectively by an acousto-optic modulator (AOM) inserted in the lasing loop. Multiple longitudinal mode oscillation of compensating light is constantly kept by random interplay between phonons and photons, leading to much higher SBS threshold power
Keywords :
acousto-optical modulation; optical fibre amplifiers; optical fibre networks; oscillations; ring lasers; stimulated Brillouin scattering; wavelength division multiplexing; SBS; acousto-optic modulator; all-optical networks; compensating signal; gain-clamped EDFA; intermittent bursts; lasing loop; longitudinal mode oscillation; ring-laser structure; stimulated Brillouin scattering; suppression; threshold power; wavelength-division multiplexing; Attenuators; Brillouin scattering; Clamps; Erbium-doped fiber amplifier; Optical fiber networks; Oscilloscopes; Power generation; Signal generators; WDM networks; Wavelength division multiplexing;
Conference_Titel :
Communication Technology Proceedings, 2000. WCC - ICCT 2000. International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-6394-9
DOI :
10.1109/ICCT.2000.889198
