Title :
Evaluation of absorption and emission cross sections of Er-doped LiNbO3 for application to integrated optic amplifiers
Author :
Huang, Chi-Hung ; McCaughan, Leon ; Gill, Douglas M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
fDate :
5/1/1994 12:00:00 AM
Abstract :
The polarization-dependent absorption and emission spectra of the 4I13/2-4I15/2 transition (λ~1.5 μm) in single crystal bulk Er:LiNbO3 have been measured. Low-temperature (10 K) measurements of the Stark split energy levels of these two manifolds indicate at least two Er3+ sites. McCumber theory is applied to determine the Er:LiNbO3 absorption and emission cross sections. These values are used to calculate the gain characteristics of Er:LiNbO3 channel waveguides. Calculations indicate that a gain of 10 dB is achievable in a waveguide of several centimeters using ~20-mW pump power
Keywords :
Stark effect; erbium; impurity and defect absorption spectra of inorganic solids; integrated optics; lithium compounds; optical waveguides; solid lasers; 1.5 micron; 10 K; 10 dB; 20 mW; Er-doped LiNbO3; Er3+ sites; LiNbO3:Er; McCumber theory; Stark split energy levels; absorption cross sections; channel waveguides; emission cross sections; gain characteristics; integrated optic amplifiers; optical transition; polarization-dependent absorption spectra; polarization-dependent emission spectra; single crystal; Absorption; Energy states; Fiber lasers; Optical fiber communication; Optical fiber devices; Optical fiber polarization; Optical materials; Optical waveguides; Stimulated emission; Waveguide lasers;
Journal_Title :
Lightwave Technology, Journal of
