TY - JOUR
T1 - Optical sum-frequency generation in a whispering-gallery-mode resonator
AU - Strekalov, Dmitry V.
AU - Kowligy, Abijith S.
AU - Huang, Yu Ping
AU - Kumar, Prem
PY - 2014/5
Y1 - 2014/5
N2 - We demonstrate sum-frequency generation between a telecom wavelength and the Rb D2 line, achieved through natural phase matching in a nonlinear whispering gallery mode resonator. Due to the strong optical field confinement and ultra high Q of the cavity, the process saturates already at sub-mW pump peak power, at least two orders of magnitude lower than in existing waveguide-based devices. The experimental data are in agreement with the nonlinear dynamics and phase matching theory based on spherical geometry. Our experimental and theoretical results point toward a new platform for manipulating the color and quantum states of light waves for applications such as atomic memory based quantum networking and logic operations with optical signals.
AB - We demonstrate sum-frequency generation between a telecom wavelength and the Rb D2 line, achieved through natural phase matching in a nonlinear whispering gallery mode resonator. Due to the strong optical field confinement and ultra high Q of the cavity, the process saturates already at sub-mW pump peak power, at least two orders of magnitude lower than in existing waveguide-based devices. The experimental data are in agreement with the nonlinear dynamics and phase matching theory based on spherical geometry. Our experimental and theoretical results point toward a new platform for manipulating the color and quantum states of light waves for applications such as atomic memory based quantum networking and logic operations with optical signals.
KW - nonlinear optics
KW - sum-frequency generation
KW - whispering-gallerymode resonators
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U2 - 10.1088/1367-2630/16/5/053025
DO - 10.1088/1367-2630/16/5/053025
M3 - Article
AN - SCOPUS:84900422216
SN - 1367-2630
VL - 16
JO - New Journal of Physics
JF - New Journal of Physics
M1 - 053025
ER -