Results 11 to 20 of about 34,641 (302)

Linewidth Measurement of a Narrow-Linewidth Laser: Principles, Methods, and Systems

open access: yesSensors
Narrow-linewidth lasers mainly depend on the development of advanced laser linewidth measurement methods for related technological progress as key devices in satellite laser communications, precision measurements, ultra-high-speed optical communications,
Chao Chen, Yong-Qiang Ning
exaly   +6 more sources

Narrow-Linewidth Laser Linewidth Measurement Technology [PDF]

open access: yesFrontiers in Physics, 2021
A narrow-linewidth laser with excellent temporal coherence is an important light source for microphysics, space detection, and high-precision measurement.
Zhenxu Bai, Zhongan Zhao, Sensen Li
exaly   +4 more sources

Comparison of Different Linewidth Measuring Methods for Narrow Linewidth Laser

open access: yesSensors, 2022
We experimentally demonstrate a fiber laser with different linewidths based on self-injection locking (SIL) and the stimulated Brillouin scattering effect.
Ziqi Zheng   +9 more
doaj   +4 more sources

The Influence of Noise Floor on the Measurement of Laser Linewidth Using Short-Delay-Length Self-Heterodyne/Homodyne Techniques

open access: yesMicromachines, 2022
Delayed self-heterodyne/homodyne measurements based on an unbalanced interferometer are the most used methods for measuring the linewidth of narrow-linewidth lasers.
Zhongan Zhao, Zhenxu Bai, Duo Jin
exaly   +3 more sources

Linewidth for fluxon oscillators

open access: yesPhysical Review B, 1982
Soliton perturbation theory is used to calculate the fluxon oscillator linewidth arising from fluxon interaction with background radiation. Detailed calculations in the case of an oscillator that is long compared with the Josephson length and for which the radiation field is thermal establish lower bounds for the linewidth of a real oscillator.
SALERNO, Mario, Scott AC
openaire   +3 more sources

Tunable passively Q-switched ultranarrow linewidth erbium-doped fiber laser

open access: yesResults in Physics, 2020
A tunable passively Q-switched erbium-doped fiber laser with ultranarrow linewidth is proposed and demonstrated. With the single wall carbon nanotubes (SWCNTs) as the passive Q-switch, the ultranarrow linewidth laser operation is realized based on ...
M Z Zulkifli   +2 more
exaly   +3 more sources

Homogeneous linewidth and linewidth enhancement factor for a GaAs semiconductor laser

open access: yesJournal of Physics D: Applied Physics, 1986
The homogeneous linewidth and the linewidth enhancement factor alpha for a room-temperature GaAs laser are studied, calculating the time constant for the relaxation of the polarisation. The homogeneous linewidth obtained, arising from electron-electron and electron-phonon interactions, is of the order of several meV.
A Sugimura, E Patzak, P Meissner
openaire   +2 more sources

Narrow-Linewidth Semiconductor Laser with Hybrid Feedback

open access: yesPhotonics
Narrow-linewidth semiconductor lasers have become indispensable devices in high-precision measurement and detection. Among various available technologies, self-injection locking plays a crucial role due to its significant ability to reduce linewidth and ...
Mingyuan Xue   +6 more
doaj   +2 more sources

Magnetic Field Dependence of Spectral Correlations between 31P-Containing Metabolites in Brain

open access: yesMetabolites, 2023
Spectral correlations between metabolites in 31P magnetic resonance spectroscopy (MRS) spectra of human brain were compared at 3 and 7 Tesla, the two commonly used magnetic field strengths for clinical research. It was found that at both field strengths,
Sungtak Hong, Jun Shen
doaj   +1 more source

PULSED KGd(WO4)2 RAMAN LASER: TOWARDS EMISSION LINEWIDTH NARROWING [PDF]

open access: yesПриборы и методы измерений, 2015
The linewidth of a KGd(WO4)2 pulsed Raman laser is analysed experimentally for different configurations of the Raman and pump resonators: with narrow and broadband pump emission profiles, with and without linewidth narrowing elements in the Raman laser ...
V. G. Savitski
doaj   +1 more source

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