Second harmonic generation in AlGaAs photonic wires using low power continuous wave light

Duchesne, D. et al. (2011) Second harmonic generation in AlGaAs photonic wires using low power continuous wave light. Optics Express, 19(13), pp. 12408-12417. (doi: 10.1364/OE.19.012408)

Abstract

We report modal phase matched (MPM) second harmonic generation (SHG) in high-index contrast AlGaAs sub-micron ridge waveguides, by way of sub-mW continuous wave powers at telecommunication wavelengths. We achieve an experimental normalized conversion efficiency of ~14%/W/cm2, obtained through a careful sub-wavelength design supporting both the phase matching requirement and a significant overlap efficiency. Furthermore, the weak anomalous dispersion, robust fabrication technology and possible geometrical and thermal tuning of the device functionality enable a fully integrated multi-functional chip for several critical areas in telecommunications, including wavelength (time) division multiplexing and quantum entanglement.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Sorel, Professor Marc
• Authors: Duchesne, D., Rutkowska, K.A., Volatier, M., Légaré, F., Delprat, S., Chaker, M., Modotto, D., Locatelli, A., De Angelis, C., Sorel, M., Christodoulides, D.N., Salamo, G., Arès, R., Aimez, V., and Morandotti, R.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Optics Express
• ISSN: 1094-4087