TY - JOUR
T1 - Spectral characterization of a frequency comb based on cascaded quadratic nonlinearities inside an optical parametric oscillator
AU - Ulvila, Ville
AU - Phillips, C. R.
AU - Halonen, Lauri
AU - Vainio, Markku
PY - 2015/9/10
Y1 - 2015/9/10
N2 - We present an experimental study of optical frequency
comb generation based on cascaded quadratic
nonlinearities inside a continuous-wave-pumped optical
parametric oscillator. We demonstrate comb states which
produce narrow-linewidth intermode beat note signals, and
we verify the mode-spacing uniformity of the comb at the
Hertz level. We also show that the spectral quality of
the comb can be improved by modulating the parametric
gain at a frequency that corresponds to the comb mode
spacing. We have reached a high average output power of
over 4 W in the near-infrared region, at ~2µm.
AB - We present an experimental study of optical frequency
comb generation based on cascaded quadratic
nonlinearities inside a continuous-wave-pumped optical
parametric oscillator. We demonstrate comb states which
produce narrow-linewidth intermode beat note signals, and
we verify the mode-spacing uniformity of the comb at the
Hertz level. We also show that the spectral quality of
the comb can be improved by modulating the parametric
gain at a frequency that corresponds to the comb mode
spacing. We have reached a high average output power of
over 4 W in the near-infrared region, at ~2µm.
UR - https://arxiv.org/abs/1506.07255
U2 - 10.1103/PhysRevA.92.033816
DO - 10.1103/PhysRevA.92.033816
M3 - Article
C2 - 24177073
SN - 1050-2947
VL - 92
JO - Physical Review A: Atomic, Molecular, and Optical Physics
JF - Physical Review A: Atomic, Molecular, and Optical Physics
IS - 3
M1 - 033816
ER -