Title :
Optimum design of Nd-doped fiber optical amplifiers
Author :
Rasmussen, Thomas ; Bjarklev, Anders ; Lumholt, Ole ; Øbro, Mads ; Pedersen, Bo ; Povlsen, Jørn Hedegaard ; Rottwitt, Karsten
Author_Institution :
Electromagn. Inst. Tech., Denmark Univ., Lyngby, Denmark
Abstract :
The waveguide parameters for a Nd-doped fluoride (Nd:ZBLANP) fiber amplifier have been optimized for small-signal and booster operation using an accurate numerical model. The optimum cutoff wavelength is shown to be 800 nm and the numerical aperture should be made as large as possible. Around 80% booster quantum conversion efficiency can be reached for an input power of 10 dBm and a pump power of 100 mW by the use of one filter.<>
Keywords :
aluminium compounds; barium compounds; fibre lasers; lanthanum compounds; laser theory; lead compounds; neodymium; optical pumping; sodium compounds; zirconium compounds; 100 mW; 800 nm; Nd-doped fiber optical amplifiers; Nd:ZBLANP; ZrF/sub 4/-BaF/sub 2/-LaF/sub 3/-AlF/sub 3/-NaF-PbF/sub 2/:Nd; accurate numerical model; booster operation; booster quantum conversion efficiency; filter; fluoride; input power; numerical aperture; optimum cutoff wavelength; pump power; small signal operation; waveguide parameters; Numerical models; Operational amplifiers; Optical design; Optical fiber amplifiers; Optical fibers; Optical filters; Optical pumping; Optical waveguides; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
