Spectral study of propagation losses of GaAs/AlOx nonlinear waveguides

Spectral study of propagation losses of GaAs/AlOx nonlinear waveguides

We therefore focus on GaAs/AlOx form-birefringent waveguides designed for type-I spontaneous parametric down conversion of a TM 00 pump at 1.06 μm into TE 00 signal-idler modes in the 1.2-4.2 μm range. Despite their encouraging 1500% W -1 cm -2 conversion efficiency (i.e. 4.5% parametric amplificati...

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Hauptverfasser: Savanier, M., Ghiglieno, F., Ducci, S., Favero, I., Leo, G.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Gallium arsenide
Optical losses
Optical pumping
Optical reflection
Optical waveguides
Oscillators
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Zusammenfassung:We therefore focus on GaAs/AlOx form-birefringent waveguides designed for type-I spontaneous parametric down conversion of a TM 00 pump at 1.06 μm into TE 00 signal-idler modes in the 1.2-4.2 μm range. Despite their encouraging 1500% W -1 cm -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.
DOI:10.1109/CLEOE.2011.5942773