Multiple rare earth emissions in a multicore tellurite fiber with a single pump wavelength.
A three-core tellurite glass fiber having different combinations of rare earth oxide dopants in each core has been fabricated using shaped die-extrusion. Three cores, doped with Ho(3+)-Tm(3+)-Yb(3+), Er(3+)-Ce(3+), and Tm(3+)-Yb(3+) respectively, exhibited visible upconversion (blue, green and red) and infrared emissions at 1.4 microm, 1.5 microm, 1.9 microm and 2.05 microm when pumped at a wavelength of 980 nm. The prospects for multi-band amplifiers and lasers are discussed.
Bookey
H T
HT
Nonlinear Optics Group, Heriot Watt University, Edinburgh EH14 4AS, UK. h.t.bookey@hw.ac.uk
Lousteau
J
J
Jha
A
A
Gayraud
N
N
Thomson
R R
RR
Psaila
N D
ND
Li
H
H
MacPherson
W N
WN
Barton
J S
JS
Kar
A K
AK
D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008674:Metals, Rare Earth / Q000737:chemistry*; D055100:Optical Fibers; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013691:Tellurium / Q000737:chemistry*
D008674:Metals, Rare Earth; C026660:tellurous acid; D013691:Tellurium