Spectral study of propagation losses of GaAs/AlOx nonlinear waveguides

Author

Savanier, Marc ; Ghiglieno, Filippo ; Ducci, Sara ; Favero, Ivan ; Leo, Giuseppe

Author_Institution

Lab. Mater. et Phenomenes Quantiques, Univ. Paris Diderot, Paris, France

fYear

2011

fDate

22-26 May 2011

Firstpage

1

Lastpage

1

Abstract

We therefore focus on GaAs/AlOx form-birefringent waveguides designed for type-I spontaneous parametric down conversion of a TM₀₀ pump at 1.06 μm into TE₀₀ signal-idler modes in the 1.2-4.2 μm range. Despite their encouraging 1500% W^-1cm^-2 conversion efficiency (i.e. 4.5% parametric amplification in 3 mm long samples for 30 mW of pump power), OPO threshold has been hindered so far by the optical losses induced by AlAs oxidation process.

Keywords

III-V semiconductors; aluminium compounds; amplification; birefringence; gallium arsenide; light propagation; optical design techniques; optical frequency conversion; optical losses; optical parametric oscillators; optical pumping; optical waveguides; oxidation; AlAs; GaAs-AlO_x; conversion efficiency; form-birefringent waveguides; nonlinear waveguides; optical parametric oscillators; oxidation process; parametric amplification; power 30 mW; propagation losses; pump power; signal-idler modes; size 3 mm; type-I spontaneous parametric down conversion; wavelength 1.06 mum; Gallium arsenide; Optical losses; Optical pumping; Optical reflection; Optical waveguides; Oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference

Conference_Location

Munich

ISSN

Pending

Print_ISBN

978-1-4577-0533-5

Electronic_ISBN

Pending

Type

conf

DOI

10.1109/CLEOE.2011.5942773

Filename

5942773