Nonlinear optics in gallium phosphide cavities: simultaneous second and third harmonic generation

Abstract

We demonstrate the simultaneous generation of second and third harmonic signals from a telecom wavelength pump in a gallium phosphide (GaP) microdisk. Using analysis of the power scaling of both the second and third harmonic outputs and calculations of nonlinear cavity mode coupling factors, we study contributions to the third harmonic signal from direct and cascaded sum frequency generation processes. We find that despite the relatively high material absorption in gallium phosphide at the third harmonic wavelength, both of these processes can be significant, with relative magnitudes that depend closely on the detuning between the second harmonic wavelength of the cavity modes.

arXiv comment13 pages, 4 figures

References in corpus (20)

• Octave-spanning frequency comb generation in a silicon nitride chip
• Periodically poled thin film lithium niobate microring resonators with a second-harmonic generation efficiency of 250,000%/W
• Integrated gallium phosphide nonlinear photonics
• Second-Harmonic Generation in Silicon Nitride Ring Resonators
• Octave-spanning dissipative Kerr soliton frequency combs in $S{i}_3{N}_4$ microresonators
• Naturally-phasematched second harmonic generation in a whispering gallery mode resonator
• Third-harmonic generation in photonic topological metasurfaces
• Second harmonic generation in gallium phosphide photonic crystal nanocavities with ultralow continuous wave pump power
• Chi2 and chi3 harmonic generation at a critical power in inhomogeneous doubly resonant cavities
• Second harmonic generation in phase matched aluminum nitride waveguides
• Dissipative and Dispersive Optomechanics in a Nanocavity Torque Sensor
• Topologically Enhanced Harmonic Generation in a Nonlinear Transmission Line Metamaterial
• 17,000 %/W Second Harmonic Conversion Efficiency in Single Crystalline Aluminum Nitride Microresonators
• Efficient telecom to visible wavelength conversion in doubly resonant GaP microdisks
• Gallium phosphide-on-silicon dioxide photonic devices
• 400%/W second harmonic conversion efficiency in $14\mu \mathrm{m}$-diameter gallium phosphide-on-oxide resonators
• Cavity optomechanics in gallium phosphide microdisks
• Second harmonic generation in GaP photonic crystal waveguides
• Optimal third-harmonic generation in an optical microcavity with ${\chi }^{(2)}$ and ${\chi }^{(3)}$ nonlinearities
• Highly selective dry etching of GaP in the presence of Al${}_{\text{x}}$Ga${}_{1-\text{x}}$P

Cited by in corpus (2)

• Diamond Integrated Quantum Photonics: A Review
• Widely-tunable, doubly-resonant Raman scattering on diamond in an open microcavity