Title :
Detailed design analysis of erbium-doped fiber amplifiers
Author :
Pedersen, Bo ; Bjarklev, Anders ; Lumholt, Ole ; Povlsen, Jørn Hedegaard
Author_Institution :
Electromagn. Inst., Tech. Univ. of Denmark, Lyngby, Denmark
fDate :
6/1/1991 12:00:00 AM
Abstract :
When pumping the erbium-doped fiber amplifier at 0.98 and 1.48 mu m, the optimum cutoff wavelength for step profiles with arbitrary numerical aperture is shown to be 0.80 and 0.90 mu m, respectively. The use of a confined erbium profile can improve the gain coefficient up to 45%. The index raising co-dopant is shown to be very significant for the gain coefficient when pumping at 0.98 mu m.<>
Keywords :
erbium; fibre lasers; optical pumping; 0.80 micron; 0.90 micron; 0.98 micron; 1.48 micron; Er:fibre amplifiers; confined erbium profile; design analysis; erbium-doped fiber amplifiers; gain coefficient; index raising co-dopant; laser pumping; numerical aperture; optimum cutoff wavelength; step profiles; Absorption; Aluminum; Erbium; Erbium-doped fiber amplifier; Germanium; Laser excitation; Laser modes; Optical fiber amplifiers; Optical fiber communication; Pump lasers;
Journal_Title :
Photonics Technology Letters, IEEE
