Second harmonic generation in GaP photonic crystal waveguides
Kelley Rivoire, Sonia Buckley, Fariba Hatami, Jelena Vuckovic
TL;DR
This paper demonstrates enhanced second harmonic generation in GaP photonic crystal waveguides, showing promising efficiency for on-chip frequency conversion of broad-spectrum emitters and ultrashort pulses.
Contribution
The study reports the first demonstration of efficient SHG in GaP photonic crystal waveguides with a specific external conversion efficiency.
Findings
Measured external conversion efficiency of 5×10^{-7}/W
Potential applications in frequency conversion of broad-spectrum emitters
Suitable for ultrashort pulse frequency conversion
Abstract
We demonstrate enhanced second harmonic generation in a gallium phosphide photonic crystal waveguide with a measured external conversion efficiency of 5/W. Our results are promising for frequency conversion of on-chip integrated emitters having broad spectra or large inhomogeneous broadening, as well as for frequency conversion of ultrashort pulses.
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