Site characterization of rare-earth-doped LiNbO3 using total site selective spectroscopy

9 May 1994

journal article
Published by AIP Publishing in Applied Physics Letters

Vol. 64 (19) , 2483-2485
https://doi.org/10.1063/1.111605

Abstract

A technique, total site selective spectroscopy, is presented to optically identify spectroscopic sites in Er:LiNbO3. Six sites are seen; four major nonclustered sites and two minor cluster sites. When pumping the 4F9/2 manifold at low temperatures (∼12 K), only cluster sites are found to upconvert using a nonradiative energy transfer mechanism. The polarization of Er3+ absorption cross sections are shown to be site dependent while the manifold lines from different sites are highly degenerate. These characteristics likely contribute to the observed simultaneous lasing at two wavelengths of devices based in this medium.

Keywords

This publication has 11 references indexed in Scilit:

Optical detection of ${Eu}^{3 +}$ sites in ${LiNbO}_{3}$ : ${Eu}^{3 +}$ and ${LiNbO}_{3}$ :MgO: ${Eu}^{3 +}$
Physical Review B, 1993
Er-diffused Ti:LiNbO3 waveguide laser of 1563 and 1576 nm emission wavelengths
Applied Physics Letters, 1992
Method for the local incorporation of Er into LiNbO3 guided wave optic devices by Ti co-diffusion
Applied Physics Letters, 1992
Optical detection of new Nd3+ sites in LiNbO3:Nd
Solid State Communications, 1991
Continuous-wave erbium-diffused LiNbO ₃ waveguide laser
Electronics Letters, 1991
Nd:MgO:LiNbO_3 waveguide laser and amplifier
Optics Letters, 1990
Laser spectroscopic measurement of point-defect dynamics in ${Eu}^{3 +}$ : ${CaF}_{2}$
Physical Review B, 1990
Miniature CW and active internally Q-switched Nd:MgO:LiNbO3lasers
IEEE Journal of Quantum Electronics, 1987
Laser spectroscopy of defect chemistry in CaF2:Er3+
The Journal of Chemical Physics, 1981
Enumeration of Components in Complex Systems by Fluorescence Spectrophotometry
Nature, 1961