Title :
An erbium-doped fiber amplifier with dynamically gain-flattened spectrum
Author :
Llang, A.H. ; Toda, H. ; Maruta, A. ; Hasegawa, A.
Author_Institution :
Dept. of Electron., Inf. & Energy Eng., Osaka Univ., Japan
Abstract :
Summary form only given. Most gain-flattened erbium-doped fiber amplifiers (EDFAs) can work only at specific operation condition (except the dynamic-flattened EDFA with Mach-Zehnder (MZ) filter). MZ filter and long-period fiber grating are expensive and may be temperature sensitive. We found that we can improve the gain and noise figure (NF) by bending the initial part of erbium-doped fiber (EDF). In this paper, we bend dispersion-shifted fiber (DSF) inserted in the middle of EDF to obtain the dynamically flattened gain spectrum.
Keywords :
bending; erbium; fibre lasers; optical communication equipment; optical fibre dispersion; optical fibre losses; EDFAs; Mach-Zehnder filter; dynamic-flattened EDFA; dynamically flattened gain spectrum; dynamically gain-flattened spectrum; erbium-doped fiber amplifier; erbium-doped fiber bending; gain-flattened erbium-doped fiber amplifiers; long-period fiber grating; noise figure; specific operation condition; temperature sensitive; Erbium-doped fiber amplifier; Information filtering; Information filters; Noise figure; Optical fiber communication; Optical fiber polarization; Optical filters; Optical pumping; Optical saturation; Power engineering and energy;
Conference_Titel :
Optical Fiber Communication Conference and Exhibit, 1998. OFC '98., Technical Digest
Conference_Location :
San Jose, CA, USA
Print_ISBN :
1-55752-521-8
DOI :
10.1109/OFC.1998.657275
