Results 11 to 20 of about 4,991,549 (250)

Optical Frequency Combs in Quadratically Nonlinear Resonators [PDF]

open access: yesMicromachines, 2020
Optical frequency combs are one of the most remarkable inventions in recent decades. Originally conceived as the spectral counterpart of the train of short pulses emitted by mode-locked lasers, frequency combs have also been subsequently generated in ...
Iolanda Ricciardi   +9 more
doaj   +6 more sources

Generation of dual and quad-optical frequency combs in the injected radiation free mode-locked frequency-shifted feedback laser [PDF]

open access: yesFrontiers of Optoelectronics, 2023
The results of an optoelectronic system—frequency-shifted feedback (FSF) laser experimental examination are presented. The considered FSF laser is seeded only with optical amplifier spontaneous emission (ASE) and operates in the mode-locked regime ...
Sergey N. Mantsevich   +3 more
doaj   +2 more sources

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   +2 more sources

All-fiber random Kerr optical frequency combs [PDF]

open access: yesNature Communications
Optical frequency combs (OFCs) unite the electromagnetic spectrum coherently, and they can be realized in a number of different techniques, e.g., OFCs based on mode-locked lasers, electro-optic modulation of continuous-wave (CW) lasers, CW-pumped ring ...
Da-Peng Zhou   +5 more
doaj   +2 more sources

Optical frequency combs for optical fiber communications

open access: yesAPL Photonics
Optical frequency combs are analyzed in the context of using them for carrying data in optical fiber communication systems. Combs are analyzed for their data-carrying capacity, i.e., for how much data they can carry, in massively multiplexed systems, and
Leif Katsuo Oxenløwe
doaj   +2 more sources

Frequency combs induced by optical feedback and harmonic order tunability in quantum cascade lasers

open access: yesAPL Photonics, 2023
This study investigates the interaction between frequency combs and optical feedback effects in Quantum Cascade Lasers (QCLs). The theoretical analysis reveals new phenomena arising from the interplay between comb generation and feedback.
Carlo Silvestri   +3 more
doaj   +2 more sources

Customized Itinerant Frequency Combs by Cascaded Nonlinear Effects. [PDF]

open access: yesAdv Sci (Weinh)
A cascaded third‐order nonlinear system generates an itinerant frequency comb with the comb center frequency decoupled from the cavity resonance. This enables arbitrary spectral scaling, flexible spacing adjustments, and real‐time central‐frequency engineering, allowing comb splicing and subdivision. The resulting versatility and reconfigurability open
Wang Y   +8 more
europepmc   +2 more sources

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

Sideband injection locking in microresonator frequency combs

open access: yesAPL Photonics, 2023
Frequency combs from continuous-wave-driven Kerr-nonlinear microresonators have evolved into a key photonic technology with applications from optical communication to precision spectroscopy.
Thibault Wildi   +4 more
doaj   +1 more source

Visible-to-mid-IR tunable frequency comb in nanophotonics

open access: yesNature Communications, 2023
Optical frequency comb is an enabling technology for a multitude of applications from metrology to ranging and communications. The tremendous progress in sources of optical frequency combs has mostly been centered around the near-infrared spectral region,
Arkadev Roy   +8 more
doaj   +1 more source

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