Title :
Flattening the gain spectrum of an erbium-doped fibre amplifier by connecting an Er3+-doped SiO2-Al2O3 fibre and an Er3+-doped multicomponent fibre
Author :
Yamada, Makoto ; Shimizu, Maiko ; Ohishi, Yasutake ; Horiguchi, M. ; Sudo, Shunsuke ; Shimizu, Atsuki
Author_Institution :
NTT Opto-Electron. Labs., Ibaraki
fDate :
10/13/1994 12:00:00 AM
Abstract :
A technique is proposed for designing the gain spectrum in Er3+-doped fibre amplifiers. It uses an active fibre constructed by connecting two erbium-doped fibres with different host materials. An Er3+-doped SiO2-Al2O3 fibre and an Er3+-doped multicomponent fibre were connected to flatten the gain spectrum in the 1.55 μm band. A flat gain spectrum was achieved in the 1.543-1.558 μm bandwidth range with a signal gain of 26 dB and a noise figure of less than 6 dB
Keywords :
erbium; fibre lasers; joining processes; optical fibre fabrication; 1.543 to 1.558 micron; 26 dB; 6 dB; Er3+-doped SiO2-Al2O3 fibre; Er3+-doped multicomponent fibre; SiO2-Al2O3:Er; active fibre; connection; erbium-doped fibre amplifier; gain spectrum; noise figure; signal gain;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19941218
