title: Self-injection locking and phase-locked states in microresonator-based optical frequency combs.
abstract: Microresonator-based optical frequency combs have been a topic of extensive research during the last few years. Several theoretical models for the comb generation have been proposed; however, they do not comprehensively address experimental results that show a variety of independent comb generation mechanisms. Here, we present frequency-domain experiments that illuminate the transition of microcombs into phase-locked states, which show characteristics of injection locking between ensembles of comb modes. In addition, we demonstrate the existence of equidistant optical frequency combs that are phase stable but have nondeterministic phase relationships between individual comb modes.
authors.affiliation: National Institute of Standards and Technology (NIST), Boulder, Colorado 80305, USA.
authors.forename: Pascal
authors.initials: P
authors.lastname: Del'Haye
authors.affiliation: National Institute of Standards and Technology (NIST), Boulder, Colorado 80305, USA.
authors.forename: Katja
authors.initials: K
authors.lastname: Beha
authors.affiliation: National Institute of Standards and Technology (NIST), Boulder, Colorado 80305, USA.
authors.forename: Scott B
authors.initials: SB
authors.lastname: Papp
authors.affiliation: National Institute of Standards and Technology (NIST), Boulder, Colorado 80305, USA.
authors.forename: Scott A
authors.initials: SA
authors.lastname: Diddams