Characterization of clusters in rare earth-doped fibers by transmission measurements

Author

Davis, M.K. ; Digonnet, M.J.F. ; Pantell, R.H.

Author_Institution

Edward L. Ginzton Lab., Stanford Univ., CA, USA

Volume

13

Issue

2

fYear

1995

fDate

2/1/1995 12:00:00 AM

Firstpage

120

Lastpage

126

Abstract

We show theoretically that the absorption saturation behavior of clustered rare earth-doped fibers depends strongly on the percentage and/or the size of the clusters, which can form the basis for a simple diagnostic tool. When applied to published transmission measurements in Er-Al-P-doped fibers, this technique indicates low percentages of clusters in fibers co-doped with P and/or Al. In Nd-doped fibers with no co-dopants, it shows the presence of a high percentage of large clusters. Estimates of the time constant and strength of the cross relaxation process in Nd and Er clusters are inferred from these measurements

Keywords

modelling; optical fibre testing; optical fibre theory; optical saturable absorption; Er-Al-P-doped fibers; Nd-doped fibers; absorption saturation behavior; clustered rare earth-doped fibers; clusters; co-dopants; cross relaxation process; diagnostic tool; large clusters; rare earth-doped fibers; time constant; transmission measurements; Absorption; Artificial intelligence; Energy states; Erbium; Life members; Optical fiber devices; Phonons; Size measurement; Stationary state; Time measurement;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.365196

Filename

365196