Octave-spanning tunable parametric oscillation in nanophotonics

Abstract

Widely-tunable coherent sources are desirable in nanophotonics for a multitude of applications ranging from communications to sensing. The mid-infrared spectral region (wavelengths beyond 2 $\mu$m) is particularly important for applications relying on molecular spectroscopy. Among tunable sources, optical parametric oscillators typically offer some of the broadest tuning ranges; however, their implementations in nanophotonics have been limited to narrow tuning ranges and only at visible and near-infrared wavelengths. Here, we surpass these limits in dispersion-engineered periodically-poled lithium niobate nanophotonics and demonstrate ultra-widely tunable optical parametric oscillators. With a pump wavelength near 1 $\mu$m, we generate output wavelengths tunable from 1.53 $\mu$m to 3.25 $\mu$m in a single chip with output powers as high as tens of milliwatts. Our results represent the first octave-spanning tunable source in nanophotonics extending into the mid-infrared which can be useful for numerous integrated photonic applications.

References in corpus (7)

• Integrated photonics on thin-film lithium niobate
• Integrated Pockels Laser
• Intense optical parametric amplification in dispersion engineered nanophotonic lithium niobate waveguides
• Ultra-low-power second-order nonlinear optics on a chip
• On-chip optical parametric oscillation into the visible: generating red, orange, yellow, and green from a near-infrared pump
• Ultra-broadband mid-infrared generation in dispersion-engineered thin-film lithium niobate
• Efficient chip-based optical parametric oscillators from 590 nm to 1150 nm

Cited by in corpus (6)

• Quasi-phase-matched up- and down-conversion in periodically poled layered semiconductors
• Mid-Infrared Cross-Comb Spectroscopy
• Wavelength-accurate and wafer-scale process for nonlinear frequency mixers in thin-film lithium niobate
• Low threshold integrated optical parametric oscillator with a compact Bragg resonator
• Ultrabroadband Milliwatt-Level Resonant Frequency Doubling on a Chip
• Quadratic-soliton-enhanced mid-IR molecular sensing