Results 11 to 20 of about 5,269,631 (254)

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   +3 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

Freely controllable single-optical-frequency comb for highly sensitive cavity ring-down spectroscopy [PDF]

open access: yesScientific Reports
Direct comb spectroscopy is a powerful tool for obtaining highly accurate spectroscopic information. However, because the number of comb modes is extremely large, the optical energy is distributed over many modes, resulting in ultrasmall optical power ...
Norihiko Nishizawa   +6 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

Local Determination of Comb Mode Number in Remote Optical Clock Comparison [PDF]

open access: yesSensors
Optical clocks and their associated frequency comparison networks are exceptionally sensitive to microscopic physical variations and thus capable of measuring fundamental physical quantities across diverse applications.
Hao Liu   +4 more
doaj   +2 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

Robust optical injection locking to a 250 MHz frequency comb without narrow-band optical pre-filtering [PDF]

open access: yes, 2011
A semiconductor laser was injection locked to a single optical frequency comb mode with a dither-free phase locked loop.
Wu, D.S.   +3 more
core   +2 more sources

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

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

Home - About - Disclaimer - Privacy