title: Dependence of a microresonator Kerr frequency comb on the pump linewidth.
abstract: We experimentally investigate the dependence of Kerr comb generation, comb linewidth, and coherent system performance on the pump linewidth in a microresonator. We find that the generation of the primary comb can have a larger tolerance to the pump linewidth compared with that of the low-phase-noise comb. In addition, the linewidths of the generated combs are almost linearly dependent on the pump linewidth in the primary and low-phase-noise states. Furthermore, the optical signal-to-noise ratio penalty between the pump and generated Kerr combs in a coherent communication system is less than 0.2 dB in both the primary and low-phase-noise states, showing that Kerr frequency combs in these two states can have similar coherent system performance to the pump.
authors.forename: Peicheng
authors.initials: P
authors.lastname: Liao
authors.forename: Changjing
authors.initials: C
authors.lastname: Bao
authors.forename: Arne
authors.initials: A
authors.lastname: Kordts
authors.forename: Maxim
authors.initials: M
authors.lastname: Karpov
authors.forename: Martin H P
authors.initials: MH
authors.lastname: Pfeiffer
authors.forename: Lin
authors.initials: L
authors.lastname: Zhang
authors.forename: Amirhossein
authors.initials: A
authors.lastname: Mohajerin-Ariaei
authors.forename: Yinwen
authors.initials: Y
authors.lastname: Cao
authors.forename: Ahmed
authors.initials: A
authors.lastname: Almaiman
authors.forename: Morteza
authors.initials: M
authors.lastname: Ziyadi
authors.forename: Steven R
authors.initials: SR
authors.lastname: Wilkinson
authors.forename: Moshe
authors.initials: M
authors.lastname: Tur
authors.forename: Tobias J
authors.initials: TJ
authors.lastname: Kippenberg
authors.forename: Alan E
authors.initials: AE
authors.lastname: Willner