Title :
Ferroelectric integrated optics: recent developments
Author :
Grisard, Arnaud ; Lallier, Eric ; Garry, Guy ; Aubert, Pascal
Author_Institution :
Lab. Central de Recherches, Thomson-CSF, Orsay, France
fDate :
10/1/1997 12:00:00 AM
Abstract :
Advances in rare-earth-doped waveguide lasers in LiNbO3, waveguided second harmonic generation through quasi-phase-matching in LiNbO3 and LiTaO3, and pulsed laser epitaxial growth of LiNbO3 on Sapphire are reported. Efficient lasers operating in CW, Q-switch, and mode-lock modes were fabricated in Nd:LiNbO3. In order to assess the potential of bulk-doped Er:LiNbO3 samples, spectroscopic measurements have been carried out, the main limiting mechanism identified, the corresponding up-conversion coefficient evaluated, and a comprehensive gain model developed. First lasing action in this material, when pumped at 1.48 μm, is described. Quasi-phase-matched generation of blue light with conversion efficiencies up to 150%/Wcm2 is also demonstrated, and finally we present the fabrication of low-loss LiNbO3 single-crystal waveguiding layers
Keywords :
ferroelectric materials; integrated optics; lithium compounds; optical harmonic generation; optical waveguides; waveguide lasers; CW mode; Er:LiNbO3; LiNbO3; LiNbO3 on sapphire; LiNbO3-Al2O3; LiNbO3:Er; LiNbO3:Nd; LiTaO3; Nd:LiNbO3; Q-switch mode; blue light generation; conversion efficiency; fabrication; ferroelectric integrated optics; gain model; mode-lock mode; pulsed laser epitaxial growth; quasi-phase-matching; rare-earth-doped waveguide laser; second harmonic generation; single-crystal waveguide; spectroscopy; up-conversion coefficient; Epitaxial growth; Ferroelectric materials; Gain measurement; Integrated optics; Laser mode locking; Optical harmonic generation; Optical pulse generation; Optical waveguides; Spectroscopy; Waveguide lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
