Single-mode LiNbO3-based waveguides for L-band interferometry

G. Martin (1) , E. Anselm (1) , T. Seure (1) , T. Moulin (1) , A. Delboulbé (1) , L. Jocou (1) , N. Bodin-Courjal (2) , O. Caballero (3) , J. Olivares (3)

1 LAOG - Laboratoire d'Astrophysique de Grenoble
2 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)
3 UAM - Universidad Autónoma de Madrid

We present three different techniques for single-mode waveguide realization in Lithium Niobate at the 3.39µm atmospheric transmission band, named L-band. These methods include Titanium diffusion, Ion Beam Implantation and Photo-inscription. After describing the fabrication process and waveguide characterization, we will present an integrated interferometer based on the Young's double slit experiment. From the recorded interferogram we recover information about the source, namely, its peak emission lines.

Domaines: Optique / photonique; Optique [physics.optics]

G. Martin, E. Anselm, T. Seure, T. Moulin, A. Delboulbé, et al.. Single-mode LiNbO3-based waveguides for L-band interferometry. SPIE Astronomical Telescopes + Instrumentation, Jun 2008, Marseille, France. ⟨10.1117/12.788357⟩. ⟨hal-00350043⟩