Title :
Gain-flattened erbium-doped fiber amplifiers for WDM transmission
Author :
Nishimura, Masayuki
Author_Institution :
Sumitomo Electr. Ind. Ltd., Yokohama, Japan
Abstract :
To flatten the gain in a wavelength range as wide as possible is, of course, the primary target, but it is also essential not to deteriorate the noise figure (NF) or the energy conversion efficiency. It is well known that doping Al in the erbium-doped fiber (EDF) broadens the gain bandwidth. It has been demonstrated that excellent gain flatness can be achieved in the wavelength range from 1544-1557 nm by careful optimization of the length of high-concentration Al doped EDF
Keywords :
aluminium; erbium; fibre lasers; laser transitions; optical communication equipment; optimisation; wavelength division multiplexing; 1544 to 1557 nm; Al doped erbium-doped fiber; WDM transmission; energy conversion efficiency; gain bandwidth; gain flatness; gain-flattened erbium-doped fiber amplifiers; high-concentration Al doped EDF; noise figure; optimization; wavelength range; Electron optics; Erbium-doped fiber amplifier; Optical amplifiers; Optical fiber amplifiers; Optical filters; Optical losses; Optical pumping; Semiconductor optical amplifiers; Stimulated emission; Wavelength division multiplexing;
Conference_Titel :
Optical Fiber Communication. OFC 97., Conference on
Conference_Location :
Dallas, TX
Print_ISBN :
1-55752-480-7
DOI :
10.1109/OFC.1997.719751
