Abstract
Optical frequency combs are pillars of precision spectroscopy, and
their microresonator realization serves applications where
miniaturization and large tooth separation are important.
Microresonator combs cover an enormous range of time scales varying
from the femtosecond periods of optical oscillations to milliseconds
corresponding to the kilohertz linewidth of the comb teeth. Here, we
develop and implement the carrier-resolved real-field model for
multi-octave frequency combs, which allows for nearly ab initio capture of all the time scales
involved. As an example, we consider a microresonator that has a mix
of second- and third-order nonlinearities and uses periodic poling. By
applying the real-field approach, we demonstrate how to surpass
traditional limitations and model the spectral broadening and soliton
mode-locking across three optical octaves.
Subject
Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials