Bragg mirror inscription on LiNbO3 waveguides by index microstructuration.
Numerous applications in integrated optics, especially those related to multiwavelength telecommunications, require dichroic reflectors for use as narrowband or broadband wavelength-selective filters. Bragg mirrors are excellent candidates for this purpose, and we describe a method of fabricating Bragg grating reflectors in Ti-indiffused Lithium Niobate single-mode waveguides based on holographic masking in association with proton exchange. The holographic setup is employed to record a photolithographic mask directly on the substrate, enabling the inscription of waveguides with both periodic and aperiodic distributed parameters.
Ferriere
Richard
R
Franche-Comté Electronique, Mécanique Thermique et Optique-Sciences et Technologies, Laboratoire d'Optique P. M. Duffieux, Unité Mixte de Recherche, Besançon Cedex, France. richard.ferriere@univ-fcomte.fr
Benkelfat
Badr-Eddine
BE
Dudley
John M
JM
Ghoumid
Kamal
K