Title :
Effect of population bottlenecking in Pr fiber amplifiers with low-phonon hosts
Author :
Quimby, R.S. ; Aitken, B.G.
Author_Institution :
Dept. of Phys., Worcester Polytech. Inst., MA, USA
fDate :
3/1/1999 12:00:00 AM
Abstract :
The measured spectroscopic properties of Pr/sup 3+/-doped into sulfide and fluoride hosts are used to model the gain efficiency of a 1300-nm Pr-doped fiber amplifier. It is found that excited-state absorption from the long-lived /sup 3/H/sub 5/ level in Pr/sup 3+/-doped sulfide glass causes a significant degradation in performance, especially at wavelengths shorter than 1320 nm, Pr/sup 3+/-doped fluoride glass does not suffer significantly from this effect, although the maximum gain is smaller in the fluoride glass.
Keywords :
fluoride glasses; laser beams; laser transitions; optical fibre amplifiers; optical glass; optical pumping; praseodymium; 1300 nm; 1320 nm; Pr fiber amplifiers; Pr-doped fiber amplifier; Pr/sup 3+/-doped fluoride glass; Pr/sup 3+/-doped sulfide glass; degradation; excited-state absorption; fluoride hosts; gain efficiency; long-lived /sup 3/H/sub 5/ level; low-phonon hosts; maximum gain; performance; population bottlenecking; spectroscopic properties; sulfide hosts; Absorption; Doped fiber amplifiers; Glass; Operational amplifiers; Optical amplifiers; Optical fiber amplifiers; Optical fiber communication; Optical fibers; Optical materials; Spectroscopy;
Journal_Title :
Photonics Technology Letters, IEEE
