Second harmonic generation in GaP photonic crystal waveguides
classification
⚛️ physics.optics
keywords
conversioncrystalfrequencygenerationharmonicphotonicsecondbroad
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We demonstrate enhanced second harmonic generation in a gallium phosphide photonic crystal waveguide with a measured external conversion efficiency of 5$\times10^{-7}$/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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