title: Nearly-degenerate three-wave mixing at 1.55 μm in oxidized AlGaAs waveguides.
abstract: We report on continuous-wave sum and difference frequency generation in selectively oxidized AlGaAs waveguides designed for degenerate spontaneous parametric down-conversion at 1.55 μm. Sum frequency generation with two pumps around this wavelength is observed with a conversion efficiency η = 1080%W-1cm-2. Difference frequency generation is also performed near degeneracy, with an external conversion efficiency η(ext) = 9.7%W-1cm-2 and a tunability of 570 nm. These results are promising for the feasibility of an integrated telecom source based on parametric fluorescence.
authors: Univ. Paris Diderot, Sorbonne Paris Cité, Laboratoire Matériaux et Phénomènes Quantiques, CNRS-UMR 7162, Case courrier 7021, 75205 Paris Cedex 13, France.
authors: Marc
authors: M
authors: Savanier
authors: Alessio
authors: A
authors: Andronico
authors: Aristide
authors: A
authors: Lemaître
authors: Christophe
authors: C
authors: Manquest
authors: Ivan
authors: I
authors: Favero
authors: Sara
authors: S
authors: Ducci
authors: Giuseppe
authors: G
authors: Leo