Title :
In situ measurement of absorption and emission cross sections in Er 3+-doped waveguides for transitions involving thermalized states
Author :
Lázaro, J.A. ; Vallés, J.A. ; Rebolledo, M.A.
Author_Institution :
Dept. de Fisica Aplicada, Zaragoza Univ., Spain
fDate :
5/1/1999 12:00:00 AM
Abstract :
An application to transitions involving thermalized states of a procedure based on the McCumber theory to determine emission and absorption cross sections in waveguides from transversal fluorescence spectra is presented. The procedure is tested in Er-doped Ti:LiNbO3 waveguides to provide accurate cross-section values for the recently attractive 550-nm band. We also study the excited-state absorption transition around 860 nm and present, to our knowledge, the first published cross-section values for this transition
Keywords :
erbium; excited states; fluorescence; impurity absorption spectra; integrated optics; lithium compounds; measurement errors; optical waveguides; titanium; visible spectra; 550 nm; 860 nm; Er-doped Ti:LiNbO3 waveguides; Er3+-doped waveguides; LiNbO3:Ti,Er; McCumber theory; absorption cross sections; accurate cross-section values; cross-section values; emission cross sections; excited-state absorption transition; in situ measurement; integrated optical waveguide lasers; thermalized states; transversal fluorescence spectra; Absorption; Erbium; Fluorescence; Integrated optics; Optical fiber communication; Optical waveguides; Spectroscopy; Testing; Waveguide theory; Waveguide transitions;
Journal_Title :
Quantum Electronics, IEEE Journal of
