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2017 ; 8
(ä): 14869
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Single-mode dispersive waves and soliton microcomb dynamics
#MMPMID28332495
Yi X
; Yang QF
; Zhang X
; Yang KY
; Li X
; Vahala K
Nat Commun
2017[Mar]; 8
(ä): 14869
PMID28332495
show ga
Dissipative Kerr solitons are self-sustaining optical wavepackets in resonators.
They use the Kerr nonlinearity to both compensate dispersion and offset optical
loss. Besides providing insights into nonlinear resonator physics, they can be
applied in frequency metrology, precision clocks, and spectroscopy. Like other
optical solitons, the dissipative Kerr soliton can radiate power as a dispersive
wave through a process that is the optical analogue of Cherenkov radiation.
Dispersive waves typically consist of an ensemble of optical modes. Here, a
limiting case is studied in which the dispersive wave is concentrated into a
single cavity mode. In this limit, its interaction with the soliton induces
hysteresis behaviour in the soliton's spectral and temporal properties. Also, an
operating point of enhanced repetition-rate stability occurs through balance of
dispersive-wave recoil and Raman-induced soliton-self-frequency shift. The
single-mode dispersive wave can therefore provide quiet states of soliton comb
operation useful in many applications.