Results 11 to 20 of about 175,759 (266)
Frequency stability of a wavelength meter and applications to laser frequency stabilization [PDF]
Applied Optics, 2015 Interferometric wavelength meters have attained frequency resolutions down to the MHz range. In particular, Fizeau interferometers, which have no moving parts, are becoming a popular tool for laser characterization and stabilization. In this article, we characterize such a wavelength meter using an ultra-stable laser in terms of relative frequency ...
Saleh, Khaldoun +4 more
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Characterization of frequency stability in precision frequency sources [PDF]
Proceedings of the IEEE, 1991 The authors present a short review of the progress that has occurred during years 1955-91 in both the theoretical and practical characterization of frequency stability of precision frequency sources. The emphasis is on the evolution of ideas and concepts for the characterization of random noise processes in such standards in the time domain and the ...
Rutman, Jacques, Walls, F. L.
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Applied Sciences, 2020 We propose a compact 4He magnetometer realizing magnetic field measurement and laser-frequency stabilization simultaneously in a single 4He atomic cell. The frequency stabilization scheme is based on the asymmetric line shape of magnetic resonance which ...
Haidong Wang +6 more
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Peculiarities of millimeter range autodynes
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016 A functional diagram and an equivalent circuit diagram of an autodyne oscillator are presented in the paper. Features of the formation of autodyne and noise characteristics are discussed taking into account the nonlinearity of autodyne phase ...
K. A. Ignatkov
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Frequency microcomb stabilization via dual-microwave control
Communications Physics, 2021 Optical frequency combs can provide phase-coherent links between optical frequencies and microwaves, allowing for precise optical frequency generation; however current technologies require external optical references or multiple power-intensive ...
Abhinav Kumar Vinod +5 more
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Frequency stability in resonator-stabilized oscillators [PDF]
IEEE Transactions on Circuits and Systems, 1990 A simplified stability analysis of resonator-stabilized oscillators is carried out by using the describing function approach. On this basis a criterion for the evaluation and optimization of the frequency stabilization introduction in an oscillator by a resonating element with a large quality factor is proposed. In particular, a frequency-stabilization
Filicori F., Vannini G.
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Applied Sciences, 2021 We experimentally and theoretically investigated the optimal condition of polarization spectroscopy for frequency stabilization on various pump beam intensities and vapor cell temperatures for the D2 closed transition line of 87Rb atoms.
Jeongyoun Jeong +5 more
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Microwave Frequency Doubler with Improved Stabilization of Output Power
Sensors, 2023 The passive multipliers based on semiconductor diodes, most frequently a Schottky type, should be driven by a certain value of input power, where the conversion losses are optimal.
Piotr Kwiatkowski +2 more
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Frequency criteria for exponential stability
IMA Journal of Mathematical Control and Information, 2022 Abstract We discuss some frequency-domain criteria for the exponential stability of nonlinear feedback systems based on Popov’s hyperstability theorem. The main results are new bounds on convergence rates for perturbations of the damped harmonic oscillator, including the Hessian-damped case, when the perturbations satisfy certain ...
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Frontiers in Energy ResearchIn order to enhance the inertia situational awareness and stability of the power system in the context of the reduction of power system inertia and the challenge of frequency stability due to the high proportion of new energy access, the background and ...
Qiang Zhang +5 more
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