Title :
Polarizing grating coupler for high Q laser cavities
Author :
Ahmed, Marwan Abdou ; Pigeon, Florent ; Tishchenko, Alexander V. ; Parriaux, Olivier ; Ouerdane, Youcef ; Reynaud, Stephanie ; Pommier, Jean-Claude ; Fuchs, Hans-Jorg
Author_Institution :
TSI Lab., St.-Etienne Univ., France
fDate :
4/1/2003 12:00:00 AM
Abstract :
A coupling grating made in the last high-index layer of a highly reflective multilayer laser output mirror, located at the outside of the laser cavity, induces a significant fall of the reflection coefficient for one of the polarizations. The lasing polarization does not suffer more than 0.1% scattering. The understanding of device operation revealed by experiments shows the way for achieving an industrial manufacturing scheme, despite the poor control which layer-deposition technologies presently have on the layer index and thickness separately.
Keywords :
diffraction gratings; laser cavity resonators; laser mirrors; light polarisation; optical control; optical couplers; optical phase matching; reflectivity; solid lasers; coupling grating; emitted polarization control; high Q laser cavities; highly reflective multilayer laser output mirror; industrial manufacturing scheme; lasing polarization; last high-index layer; layer-deposition technologies; phase matching condition; polarizing grating coupler; reflection coefficient; reflection coefficient measurement; reflection spectra; scattering measurement; solid-state lasers; Gratings; Industrial control; Manufacturing industries; Mirrors; Nonhomogeneous media; Optical coupling; Optical reflection; Polarization; Scattering; Thickness control;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2003.809334
