Abbreviated Journal Title
POLED LITHIUM-NIOBATE; FREQUENCY-CONVERSION; MICRORING RESONATORS; HARMONIC-GENERATION; MU-M; GUIDES; NANOWIRES; GAAS; BIREFRINGENCE; WAVEGUIDES; Optics
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 similar to 14%/W/cm(2), 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.
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.; Arés, R.; Aimez, V.; and Morandotti, R., "Second harmonic generation in AlGaAs photonic wires using low power continuous wave light" (2011). Faculty Bibliography 2010s. 1262.