Researchers at NIST and JQI have developed a miniaturized technique to generate precise wavelengths of visible light using optical parametric oscillation (OPO) in microresonators. The technique involves creating periodic corrugations on the surface of a microring resonator, which allows precise control over the output wavelengths. The method achieves 99.7% accuracy in selecting specific visible-light wavelengths, with potential to reach 99.9% accuracy. This development could enable compact, portable devices for precision timekeeping and quantum information science applications. The research was published in Nature Photonics.
Keywords: Wavelength, Quantum, Metrology, Corrugations, Resonance
