Title :
Pr-doped mixed-halide glasses for 1300 nm amplification
Author :
Newhouse, M.A. ; Bartholomew, R.F. ; Aitken, B.G. ; Button, L.J. ; Borrelli, N.F.
Author_Institution :
Technol. Group, Corning Inc., NY, USA
Abstract :
The pump efficiency of Pr-doped fluorozirconate amplifiers at 1300 nm is limited by nonradiative decay. A Pr/sup 3+1/G4 excited state lifetime of 322 μs has been obtained in a mixed-halide glass. This is 2.9 times longer than the lifetime in a fluorozirconate host. Numerical amplifier modeling combined with calculated emission cross sections predicts a comparable increase in amplifier pump efficiency. The mixed-halide 1G4 emission is peaked at 1310 nm.
Keywords :
fibre lasers; fluorescence; fluoride glasses; halide glasses; laser transitions; luminescence of inorganic solids; praseodymium; radiative lifetimes; superradiance; 1300 nm; 1300 nm amplification; 1310 nm; 322 mus; ASE power; Pr-doped fluorozirconate amplifiers; Pr-doped mixed-halide glasses; Pr/sup 3+1/G/sub 4/ excited state lifetime; amplifier pump efficiency; emission cross sections; fiber materials; fluorescence lifetime; nonradiative decay; numerical amplifier modeling; pump efficiency; Doped fiber amplifiers; Electromagnetic wave absorption; Fluorescence; Glass; Optical amplifiers; Optical fiber amplifiers; Optical fiber communication; Optical pumping; Phonons; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
