Results 71 to 80 of about 50,151 (190)
Coherent control of mid-infrared frequency comb by optical injection of near-infrared light
APL Photonics, 2023 We demonstrate the use of a low power near-infrared laser illuminating the front facet of a quantum cascade laser (QCL) as an optical actuator for the coherent control of a mid-infrared frequency comb. We show that with appropriate current control of the
Kenichi N. Komagata +7 more
doaj +1 more source
Direct Kerr-frequency-comb atomic spectroscopy [PDF]
, 2018 Microresonator-based soliton frequency combs - microcombs - have recently emerged to offer low-noise, photonic-chip sources for optical measurements.
Cole, Daniel C. +10 more
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Photonic Damascene Process for Integrated High-Q Microresonator Based Nonlinear Photonics
, 2015 High confinement, integrated silicon nitride (SiN) waveguides have recently emerged as attractive platform for on-chip nonlinear optical devices. The fabrication of high-Q SiN microresonators with anomalous group velocity dispersion (GVD) has enabled ...
Brasch, Victor +6 more
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An ultra-stable high-power optical frequency comb
APL PhotonicsOptical frequency combs are typically generated in the near-infrared wavelength range, where many mode-locked lasers operate. Nonlinear frequency conversion can then be used to extend optical frequency metrology to other spectral regions, such as the ...
Fabian Schmid +6 more
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Transient Regime of Kerr Frequency Comb Formation
, 2011 Temporal growth of an optical Kerr frequency comb generated in a microresonator is studied both experimentally and numerically. We find that the comb emerges from vacuum fluctuations of the electromagnetic field on timescales significantly exceeding the ...
A. A. Savchenkov +6 more
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Optical frequency combs and optical frequency measurements
, 2014 Self-referenced optical frequency combs are nowadays the instrument of choice in time and frequency metrology when dealing with high accuracy and stability measurements of optical frequencies. Beyond this purely measurement activity, they also have new high performance applications, such as low phase noise microwave generation and transfer of spectral ...
Le Coq, Yann +6 more
openaire +3 more sources
Downsampling of optical frequency combs
Journal of the Optical Society of America B, 2018 We demonstrate repetition-rate downsampling of optical frequency combs by way of pulse gating. The reduced repetition rate enables increased pulse energy, facilitating efficient spectral broadening and f-2f interferometry. To explore the technique, we downsample a 250 MHz repetition-rate comb to 25 MHz and detect the carrier-envelope offset frequency ...
Daniel C. Cole +2 more
openaire +2 more sources
Absolute frequency measurement of the magnesium intercombination transition $^1S_0 \to ^3P_1$
, 2007 We report on a frequency measurement of the $(3s^2)^1S_0\to(3s3p)^3P_1$ clock transition of $^{24}$Mg on a thermal atomic beam. The intercombination transition has been referenced to a portable primary Cs frequency standard with the help of a femtosecond
André Pape +17 more
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Implementation of a single femtosecond optical frequency comb for rovibrational cooling
, 2010 We show that a single femtosecond optical frequency comb may be used to induce two-photon transitions between molecular vibrational levels to form ultracold molecules, e.g., KRb.
Malinovskaya, S., Shi, W.
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Dual-frequency comb in fiber Fabry–Perot resonator
APL PhotonicsThis paper presents a novel approach to dual-frequency comb generation utilizing a single fiber Fabry–Perot resonator, advancing the implementation of these sources in fiber-based systems. Dual-comb applications such as spectroscopy, ranging, and imaging,
Thomas Bunel +5 more
doaj +1 more source