Research output: Contribution to journal › Article › peer-review
Walk-off controlled self-starting frequency combs in X(2) optical microresonators. / Smirnov, S.; Sturman, B.; Podivilov, E. et al.
In: Optics Express, Vol. 28, No. 12, 08.06.2020, p. 18006-18017.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Walk-off controlled self-starting frequency combs in X(2) optical microresonators
AU - Smirnov, S.
AU - Sturman, B.
AU - Podivilov, E.
AU - Breunig, I.
PY - 2020/6/8
Y1 - 2020/6/8
N2 - Investigations of frequency combs in x(3) optical microresonators are burgeoning nowadays. Changeover to x(2) resonators promises further advances and brings new challenges. Here, the comb generation entails not only coupled first and second harmonics (FHs and SHs) and two dispersion coefficients but also a substantial difference in the group velocities - the temporal walk-off. We predict walk-off controlled highly stable comb generation, which is drastically different from that known in the x(3) case. This includes the general notion of antiperiodic states; formation of localized coherent antiperiodic steady states (solitons), where the FH and SH envelopes move with a common velocity without shape changes; characterization of a new vast family of antiperiodic solitons; and the dependence of comb spectra on the pump power and the group velocity difference.
AB - Investigations of frequency combs in x(3) optical microresonators are burgeoning nowadays. Changeover to x(2) resonators promises further advances and brings new challenges. Here, the comb generation entails not only coupled first and second harmonics (FHs and SHs) and two dispersion coefficients but also a substantial difference in the group velocities - the temporal walk-off. We predict walk-off controlled highly stable comb generation, which is drastically different from that known in the x(3) case. This includes the general notion of antiperiodic states; formation of localized coherent antiperiodic steady states (solitons), where the FH and SH envelopes move with a common velocity without shape changes; characterization of a new vast family of antiperiodic solitons; and the dependence of comb spectra on the pump power and the group velocity difference.
KW - WHISPERING-GALLERY MODES
KW - PARAMETRIC OSCILLATION
KW - GENERATION
KW - SOLITON
KW - SPECTROSCOPY
KW - RESONATORS
UR - http://www.scopus.com/inward/record.url?scp=85086518701&partnerID=8YFLogxK
U2 - 10.1364/OE.395360
DO - 10.1364/OE.395360
M3 - Article
C2 - 32680002
AN - SCOPUS:85086518701
VL - 28
SP - 18006
EP - 18017
JO - Optics Express
JF - Optics Express
SN - 1094-4087
IS - 12
ER -
ID: 24516893