Results 21 to 30 of about 117,216 (290)

Mechanical overtone frequency combs

open access: yesNature Communications, 2023
AbstractMechanical frequency combs are poised to bring the applications and utility of optical frequency combs into the mechanical domain. So far, their main challenge has been strict requirements on drive frequencies and power, which complicate operation.
Matthijs H. J. de Jong   +4 more
openaire   +6 more sources

Dynamics of the Frequency Shifts in Semiconductor Lasers under the Injection of a Frequency Comb

open access: yesPhotonics, 2022
We have numerically investigated the dynamics of frequency shifts in semiconductor lasers under the injection of a frequency comb. We have studied the effect of comb spacing on the locking bandwidth.
Najm M. Al-Hosiny
doaj   +1 more source

Femtosecond Optical Frequency Combs [PDF]

open access: yesThe European Physical Journal Special Topics, 2009
A laser frequency comb allows the conversion of the very rapid oscillations of visible light of some 100’s of THz down to frequencies that can be handled with conventional electronics. This capability has enabled the most precise laser spectroscopy experiments yet that allowed to test quantum electrodynamics, to determine fundamental constants and to ...
Udem, T., Holzwarth, R., Hänsch, T.
openaire   +2 more sources

Precision dual-comb spectroscopy using wavelength-converted frequency combs with low repetition rates

open access: yesScientific Reports, 2023
Precision spectroscopy contributed significantly to the development of quantum mechanics in its early stages. In the twenty-first century, precision spectroscopy has played an important role in several fields, including fundamental physics, precision ...
Yohei Sugiyama   +4 more
doaj   +1 more source

Chip-based optical frequency combs for high-capacity optical communications

open access: yesNanophotonics, 2021
Current fibre optic communication systems owe their high-capacity abilities to the wavelength-division multiplexing (WDM) technique, which combines data channels running on different wavelengths, and most often requires many individual lasers.
Hu Hao, Oxenløwe Leif K.
doaj   +1 more source

Optical Frequency Comb Photoacoustic Spectroscopy [PDF]

open access: yes2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2018
Optical frequency comb photoacoustic spectroscopy (OFC-PAS) is demonstrated for the first time for broadband high-resolution trace gas analysis in small sample volumes.
Ibrahim Sadiek   +4 more
openaire   +8 more sources

Clustered frequency comb

open access: yesOptics Letters, 2016
We show theoretically that it is feasible to generate a spectrally broad Kerr frequency comb consisting of several spectral clusters phase matched due to interplay among second- and higher-order group velocity dispersion contributions. We validate the theoretical analysis experimentally by driving a magnesium fluoride resonator, characterized with 110 ...
Andrey B, Matsko   +3 more
openaire   +2 more sources

Resonant electro-optic frequency comb [PDF]

open access: yesNature, 2019
High speed optical telecommunication is enabled by wavelength division multiplexing, whereby hundreds of individually stabilized lasers encode the information within a single mode optical fiber. In the seek for larger bandwidth the optical power sent into the fiber is limited by optical non-linearities within the fiber and energy consumption of the ...
Rueda, A.   +4 more
openaire   +4 more sources

Ultrafast electrooptic dual-comb interferometry [PDF]

open access: yes, 2015
The femtosecond laser frequency comb has enabled the 21st century revolution in optical synthesis and metrology. A particularly compelling technique that relies on the broadband coherence of two laser frequency combs is dual-comb interferometry.
Duran, Vicente   +2 more
core   +2 more sources

Extreme Ultraviolet Frequency Comb Metrology [PDF]

open access: yesPhysical Review Letters, 2010
The remarkable precision of frequency comb (FC) lasers is transferred to the extreme ultraviolet (XUV, wavelengths shorter than 100 nm), a frequency region previously not accessable to these devices. A frequency comb at XUV wavelengths near 51 nm is generated by amplification and coherent upconversion of a pair of pulses originating from a near ...
Kandula, D.Z.   +4 more
openaire   +4 more sources

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