Title :
Optimization of Pr/sup 3+/:ZBLAN fiber amplifiers
Author :
Pedersen, B. ; Miniscalco, W.J. ; Quimby, R.S.
Author_Institution :
Electromagn. Inst., Tech. Univ. of Denmark, Lyngby, Denmark
fDate :
5/1/1992 12:00:00 AM
Abstract :
Experimental parameters have been measured and used in a quantitative model of Pr/sup 3+/-doped fluorozirconate fiber amplifiers. The optimum cutoff wavelength was determined to be 800 nm and the gain for 400 mW of pump was found to increase from 12 to 34 dB if the NA was increased from 0.15 to 0.25. Lengthening the metastable state lifetime from 110 to 300 mu s would significantly improve amplifier performance while concentration quenching can appreciably degrade it.<>
Keywords :
aluminium compounds; barium compounds; fibre lasers; lanthanum compounds; optical pumping; optimisation; praseodymium; sodium compounds; zirconium compounds; 110 to 300 mus; 12 to 34 dB; 400 mW; 800 nm; IR; Pr/sup 3+/-doped fluorozirconate fiber amplifiers; Pr/sup 3+/:ZBLAN fiber amplifiers; ZrF/sub 4/-BaF/sub 2/-LaF/sub 3/-NaF:Pr/sup 3+/; amplifier performance; concentration quenching; fibre laser optimisation; metastable state lifetime; numerical aperture; optical pumping; optimum cutoff wavelength; quantitative model; Absorption; Fiber lasers; Laser modes; Optical amplifiers; Optical fiber amplifiers; Pulse amplifiers; Semiconductor lasers; Semiconductor optical amplifiers; Stationary state; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
