Title :
Performance comparison of various configurations of single-pump dispersion-compensating Raman/EDFA hybrid amplifiers
Author :
Lee, Ju Han ; Chang, You Min ; Han, Young-Geun ; Kim, Sang Hyuck ; Chung, Haeyang ; Lee, Sang Bae
Author_Institution :
Photonics Res. Center, Korea Inst. of Sci. & Technol., Seoul, South Korea
fDate :
4/1/2005 12:00:00 AM
Abstract :
We show experimental performance comparison of three types of single-pump highly efficient dispersion-compensating Raman/erbium-doped fiber amplifier (EDFA) hybrid amplifiers with respect to gain, noise figure (NF), and stimulated Brillouin scattering (SBS)-induced penalty: Raman/EDFA hybrid amplifiers recycling residual Raman pump in a cascaded erbium-doped fiber located either after (Type I) or prior to (Type II) a dispersion-compensating fiber, and a Raman assisted EDFA (Type III). Type I shows high small-signal gains, moderate large-signal gains, moderate NFs, and high SBS tolerances. Type II shows high small-signal gains, low NFs, and low SBS tolerances. Type III shows moderate small-signal gains, high large-signal gains, moderate NFs, and high SBS tolerances.
Keywords :
Raman lasers; erbium; optical fibre amplifiers; optical fibre dispersion; optical pumping; stimulated Brillouin scattering; Raman assisted EDFA; Raman/EDFA hybrid amplifiers; SBS-induced penalty; cascaded erbium-doped fiber; dispersion-compensating amplifiers; dispersion-compensating fiber; high-small signal gains; moderate large signal gains; noise figure; residual Raman pump; single-pump hybrid amplifiers; small-signal gains; stimulated Brillouin scattering; Brillouin scattering; Erbium-doped fiber amplifier; Optical amplifiers; Optical fiber amplifiers; Optical fiber communication; Optical fiber dispersion; Performance gain; Raman scattering; Recycling; Stimulated emission; Erbium-doped fiber (EDF); Raman scattering; optical fiber amplifiers; optical fiber communication; optical pumping;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.843284
