Nonlinear optics plays an important role in the operation and networking of optical quantum systems. Frequency conversion processes are often used in producing laser light at relevant wavelengths for control and interrogation of quantum systems, in creating frequency combs for precision measurements and optical clock readout, and in linking quantum systems to and from telecommunications-band optical fiber networks. Recent development of robust photonic integrated circuit (PIC) platforms possessing strong optical nonlinearities has brought some of this functionality to the chip-scale, with low-power, continuous-wave nonlinear optics in particular possible in microresonator geometries. In this talk, I will review my lab’s progress in developing Kerr nonlinear microresonators for the above applications. I will discuss how these systems can be tailored for low-noise, nonlinear light generation in the visible, for octave-spanning frequency combs suitable for deployable optical clocks, and for networking of quantum nodes.
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