Title :
Comparison between erbium-doped fluoride and silica fiber amplifiers in an AM-CATV transmission system
Author :
Ibrahim, H. ; Ronarc´h, D. ; Pophillat, L. ; Madani, A. ; Maolic, J. ; Guibert, M. ; Le Roch, J. ; Jaffre, P.
fDate :
5/1/1993 12:00:00 AM
Abstract :
Interest behavior of the flattened dynamic gain of an erbium-doped fluorozirconate fiber amplifier is demonstrated in a lightwave CATV system including a 50-channel subcarrier multiplexer. Using two analog distributed-feedback (DFB) laser diodes, one with a relatively high chirp and the other with a very low chirp, a comparison between amplifiers made of erbium-doped silica and fluoride fiber demonstrates the significant influence of the laser FM response when the spectral dynamic gain of the amplifier is not constant.<>
Keywords :
aluminium compounds; amplitude modulation; barium compounds; cable television; erbium; fibre lasers; lanthanum compounds; optical links; optical modulation; sodium compounds; zirconium compounds; AM-CATV transmission system; DFB laser diodes; SiO/sub 2/-GeO/sub 2/-P/sub 2/O/sub 5/-Al/sub 2/O/sub 3/:Er; ZrF/sub 4/-BaF/sub 2/-LaF/sub 3/-AlF/sub 3/-NaF:Er; distributed-feedback; erbium-doped fluorozirconate fiber amplifier; flattened dynamic gain; laser FM response; lightwave CATV system; relatively high chirp; silica fiber amplifiers; spectral dynamic gain; subcarrier multiplexer; very low chirp; Chirp; Degradation; Erbium-doped fiber amplifier; Erbium-doped fiber lasers; Glass; Optical amplifiers; Optical fiber amplifiers; Semiconductor optical amplifiers; Silicon compounds; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
