Results 1 to 10 of about 50,101 (142)

The optical frequency comb fibre spectrometer [PDF]

open access: yesNature Communications, 2016
An ideal optical frequency-comb system should combine both single-line spectral resolution and a bandwidth broad enough to cover as many lines as possible.
Nicola Coluccelli   +5 more
doaj   +2 more sources

Optical Frequency Comb Generation based on Erbium Fiber Lasers

open access: yesNanophotonics, 2016
Optical frequency combs have revolutionized optical frequency metrology and are being actively investigated in a number of applications outside of pure optical frequency metrology. For reasons of cost, robustness, performance, and flexibility, the erbium
Droste Stefan   +4 more
doaj   +2 more sources

Terahertz-Rate Kerr-Microresonator Optical Clockwork

open access: yesPhysical Review X, 2019
Kerr microresonators generate interesting and useful fundamental states of electromagnetic radiation through nonlinear interactions of continuous-wave (CW) laser light.
Tara E. Drake   +10 more
doaj   +2 more sources

Coherent microwave comb generation via the Josephson effect [PDF]

open access: yesNature Communications
Frequency combs represent exceptionally precise measurement tools due to the coherence of their spectral lines. While optical frequency comb sources constitute a well-established technology, superconducting circuits provide a relatively unexplored on ...
Angelo Greco   +3 more
doaj   +2 more sources

Frequency pushing and pulling in semiconductor lasers subject to optical frequency comb injection

open access: yesResults in Engineering
We theoretically investigate the frequency shift of a free-running semiconductor laser when optically injected by an optical frequency comb. By numerical integration of the laser rate equations, we have identified two types of frequency shifts, frequency
Wafa Althobaity   +2 more
doaj   +3 more sources

Proposed Scheme for Ultra-Flat Optical Frequency Comb Generation Based on Dual-Drive Mach–Zehnder Modulators and Bidirectional Recirculating Frequency Shifting in Single Loop

open access: yesPhotonics, 2022
Recirculating frequency shifting has attracted much attention for its advantages in the generation of the flexible and high-quality optical frequency comb.
Yu Liu, Shibao Wu
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

Kerr-Raman Optical Frequency Combs in Silica Microsphere Pumped Near Zero Dispersion Wavelength

open access: yesIEEE Access, 2021
Optical frequency combs generated in whispering gallery mode microresonators are in high demand for basic science and a large number of applications including telecommunication systems and quantum optics.
Elena A. Anashkina, Alexey V. Andrianov
doaj   +1 more source

10 GHz generation with ultra-low phase noise via the transfer oscillator technique

open access: yesAPL Photonics, 2022
Coherent frequency division of high-stability optical sources permits the extraction of microwave signals with ultra-low phase noise, enabling their application to systems with stringent timing precision.
N. V. Nardelli   +6 more
doaj   +1 more source

Broadband high-resolution x-ray frequency combs [PDF]

open access: yes, 2014
Optical frequency combs have had a remarkable impact on precision spectroscopy. Enabling this technology in the x-ray domain is expected to result in wide-ranging applications, such as stringent tests of astrophysical models and quantum electrodynamics ...
Buth, Christian   +5 more
core   +3 more sources

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