Dual-pump generation of high-coherence primary Kerr combs with multiple sub-lines.
We experimentally generate high-coherence primary Kerr combs with multiple sub-lines by using dual pumps and demonstrate the application of a primary comb state in multichannel communications. We find that more than 10 primary comb lines can be generated within the spectrum of modulation instability gain in our microring resonator. The generation is also verified by numerical simulations and the measured linewidth confirms the high coherence of the generated primary comb lines. We also demonstrate the high-coherence characteristics in a coherent communication experiment, in which each comb line is encoded with 20 Gbaud quadrature phase-shift-keyed signals.
Changjing
C
Bao
Peicheng
P
Liao
Arne
A
Kordts
Lin
L
Zhang
Maxim
M
Karpov
Martin H P
MH
Pfeiffer
Yinwen
Y
Cao
Yan
Y
Yan
Ahmed
A
Almaiman
Guodong
G
Xie
Amirhossein
A
Mohajerin-Ariaei
Long
L
Li
Morteza
M
Ziyadi
Steven R
SR
Wilkinson
Moshe
M
Tur
Tobias J
TJ
Kippenberg
Alan E
AE
Willner