Research output: Contribution to journal › Article › peer-review
Modulation Instability Induced Frequency Comb Generation in a Continuously Pumped Optical Parametric Oscillator. / Mosca, S.; Parisi, M.; Ricciardi, I. et al.
In: Physical Review Letters, Vol. 121, No. 9, 093903, 30.08.2018.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Modulation Instability Induced Frequency Comb Generation in a Continuously Pumped Optical Parametric Oscillator
AU - Mosca, S.
AU - Parisi, M.
AU - Ricciardi, I.
AU - Leo, F.
AU - Hansson, T.
AU - Erkintalo, M.
AU - Maddaloni, P.
AU - De Natale, P.
AU - Wabnitz, S.
AU - De Rosa, M.
PY - 2018/8/30
Y1 - 2018/8/30
N2 - Continuously pumped passive nonlinear cavities can be harnessed for the creation of novel optical frequency combs. While most research has focused on third-order "Kerr" nonlinear interactions, recent studies have shown that frequency comb formation can also occur via second-order nonlinear effects. Here, we report on the formation of quadratic combs in optical parametric oscillator (OPO) configurations. Specifically, we demonstrate that optical frequency combs can be generated in the parametric region around half of the pump frequency in a continuously driven OPO. We also model the OPO dynamics through a single time-domain mean-field equation, identifying previously unknown dynamical regimes, induced by modulation instabilities, which lead to comb formation. Numerical simulation results are in good agreement with experimentally observed spectra. Moreover, the analysis of the coherence properties of the simulated spectra shows the existence of correlated and phase-locked combs. Our results reveal previously unnoticed dynamics of an apparently well assessed optical system, and can lead to a new class of frequency comb sources that may stimulate novel applications by enabling straightforward access to elusive spectral regions, such as the midinfrared.
AB - Continuously pumped passive nonlinear cavities can be harnessed for the creation of novel optical frequency combs. While most research has focused on third-order "Kerr" nonlinear interactions, recent studies have shown that frequency comb formation can also occur via second-order nonlinear effects. Here, we report on the formation of quadratic combs in optical parametric oscillator (OPO) configurations. Specifically, we demonstrate that optical frequency combs can be generated in the parametric region around half of the pump frequency in a continuously driven OPO. We also model the OPO dynamics through a single time-domain mean-field equation, identifying previously unknown dynamical regimes, induced by modulation instabilities, which lead to comb formation. Numerical simulation results are in good agreement with experimentally observed spectra. Moreover, the analysis of the coherence properties of the simulated spectra shows the existence of correlated and phase-locked combs. Our results reveal previously unnoticed dynamics of an apparently well assessed optical system, and can lead to a new class of frequency comb sources that may stimulate novel applications by enabling straightforward access to elusive spectral regions, such as the midinfrared.
KW - MU-M
KW - COHERENCE PROPERTIES
KW - FIBER LASER
KW - WAVE-GUIDES
KW - PHASE
KW - NONLINEARITIES
KW - MICRORESONATOR
KW - PATTERNS
KW - DYNAMICS
KW - CAVITY
UR - http://www.scopus.com/inward/record.url?scp=85053164951&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.121.093903
DO - 10.1103/PhysRevLett.121.093903
M3 - Article
C2 - 30230881
AN - SCOPUS:85053164951
VL - 121
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 9
M1 - 093903
ER -
ID: 16568431