Gotowe bibliografie tematyczne / Frequency drift interferometry

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Gotowa bibliografia na temat „Frequency drift interferometry”

Autor: Grafiati

Data publikacji: 28 września 2024

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Frequency drift interferometry"

Wu, Wan Duo, Qiang Xian Huang, Chao Qun Wang, Ting Ting Wu, and Hong Xie. "The Analysis and Design of a Large Stroke with High-Precision Polarized Laser Interferometer System." Key Engineering Materials 679 (February 2016): 129–34. http://dx.doi.org/10.4028/www.scientific.net/kem.679.129.

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The technique utilizing single-frequency laser interferometry has very high measurement accuracy, but it has rigorous requirements for optical design which is affected by many factors. In order to achieve single-frequency laser interferometry with large stroke and high precision, the integral layout, the polarization phase shifting technique and the common mode rejection method are adopted to design the length interferometry system. This paper analyzes factors and design requirements which affect measurement accuracy with large stroke. Based on polarization phase shifting technique, the system

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Liu, Tiegen, Junfeng Shi, Junfeng Jiang, et al. "Nonperpendicular Incidence Induced Spatial Frequency Drift in Polarized Low-Coherence Interferometry and Its Compensation." IEEE Photonics Journal 7, no. 6 (2015): 1–7. http://dx.doi.org/10.1109/jphot.2015.2494505.

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Qian, Yibin, Jiakun Li, Qibo Feng, Qixin He, and Fei Long. "Error Analysis of Heterodyne Interferometry Based on One Single-Mode Polarization-Maintaining Fiber." Sensors 23, no. 8 (2023): 4108. http://dx.doi.org/10.3390/s23084108.

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Using polarization-maintaining fiber (PMF) in dual-frequency heterodyne interferometry has the advantages of reducing the laser’s own drift, obtaining high-quality light spots, and improving thermal stability. Using only one single-mode PMF to achieve the transmission of dual-frequency orthogonal, linearly polarized beam requires angular alignment only once to realize the transmission of dual-frequency orthogonal, linearly polarized light, avoiding coupling inconsistency errors, so that it has the advantages of high efficiency and low cost. However, there are still many nonlinear influencing f

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Kakuma, Seiichi, and Yasuhiko Katase. "Frequency scanning interferometry immune to length drift using a pair of vertical-cavity surface-emitting laser diodes." Optical Review 19, no. 6 (2012): 376–80. http://dx.doi.org/10.1007/s10043-012-0061-3.

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Zhang, Jinge, Hamish A. S. Reid, Eoin Carley, et al. "Imaging a Large Coronal Loop Using Type U Solar Radio Burst Interferometry." Astrophysical Journal 965, no. 2 (2024): 107. http://dx.doi.org/10.3847/1538-4357/ad26fd.

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Abstract Solar radio U-bursts are generated by electron beams traveling along closed magnetic loops in the solar corona. Low-frequency (<100 MHz) U-bursts serve as powerful diagnostic tools for studying large-sized coronal loops that extend into the middle corona. However, the positive frequency drift component (descending leg) of U-bursts has received less attention in previous studies, as the descending radio flux is weak. In this study, we utilized LOFAR interferometric solar imaging data from a U-burst that has a significant descending leg component, observed between 10 and 90 MHz on 20

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Monselesan, D. P., R. J. Morris, P. L. Dyson, and M. R. Hyde. "Southern high-latitude Digisonde observations of ionosphere E-region Bragg scatter during intense lacuna conditions." Annales Geophysicae 22, no. 8 (2004): 2819–35. http://dx.doi.org/10.5194/angeo-22-2819-2004.

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Abstract. During summer months at solar cycle minimum, F-region lacuna and slant-Es conditions (SEC) are common features of daytime ionograms recorded around local magnetic noon at Casey, Antarctica. Digisonde measurements of drift velocity height profiles show that the occurrence of lacuna prevents the determination of F-region drift velocities and also affects E-region drift velocity measurements. Unique E-region spectral features revealed as intervals of Bragg scatter superimposed on typical background E-region reflection were observed in Digisonde Doppler spectra during intense lacuna cond

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Denbina, Michael, Marc Simard, Ernesto Rodriguez, Xiaoqing Wu, Albert Chen, and Tamlin Pavelsky. "Mapping Water Surface Elevation and Slope in the Mississippi River Delta Using the AirSWOT Ka-Band Interferometric Synthetic Aperture Radar." Remote Sensing 11, no. 23 (2019): 2739. http://dx.doi.org/10.3390/rs11232739.

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AirSWOT is an airborne Ka-band synthetic aperture radar, capable of mapping water surface elevation (WSE) and water surface slope (WSS) using single-pass interferometry. AirSWOT was designed as a calibration and validation instrument for the forthcoming Surface Water and Ocean Topography (SWOT) mission, an international spaceborne synthetic aperture radar mission planned for launch in 2022 which will enable global mapping of WSE and WSS. As an airborne instrument, capable of quickly repeating overflights, AirSWOT enables measurement of high frequency and fine scale hydrological processes encou

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Liu, Sixun, Zhuo Wang, and Yueyang Zhai. "In-Situ Detection for Atomic Density in the K-Rb-21Ne Co-Magnetometer via an Optical Heterodyne Interferometry." Photonics 10, no. 10 (2023): 1091. http://dx.doi.org/10.3390/photonics10101091.

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The low-frequency fluctuations of the atomic density within the cell can induce the longterm drift of the K-Rb-21Ne spin-exchange relaxation-free (SERF) co-magnetometer output, such that the accurate measurement of in situ atomic density is of great significance for improving the performance of co-magnetometer. In this paper, the complex refractive index model of the spin ensembles under the hybrid optical pumping condition is established first, according to which the relation between atomic density and its complex refractive index is revealed and an optical heterodyne-based scheme for atomic

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Saito, S., M. Yamamoto, S. Fukao, M. Marumoto, and R. T. Tsunoda. "Radar observations of field-aligned plasma irregularities in the SEEK-2 campaign." Annales Geophysicae 23, no. 7 (2005): 2307–18. http://dx.doi.org/10.5194/angeo-23-2307-2005.

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Abstract. During the Sporadic E Experiment over Kyushu 2 (SEEK-2) campaign, field-aligned irregularities (FAIs) associated with midlatitude sporadic-E (Es) layers were observed with two backscatter radars, the Lower Thermosphere Profiler Radar (LTPR) and the Frequency Agile Radar (FAR), which were located 40 km apart in Tanegashima, Japan. We conducted observations of FAI echoes from 31 July to 24 August 2002, and the radar data were used to determine launch timing of two sounding rockets on 3 August 2002. Our comparison of echoes obtained by the LTPR and the FAR revealed that echoes often app

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Ma, Maoli, Guifré Molera Calvés, Giuseppe Cimò, et al. "Detecting the Oscillation and Propagation of the Nascent Dynamic Solar Wind Structure at 2.6 Solar Radii Using Very Long Baseline Interferometry Radio Telescopes." Astrophysical Journal Letters 940, no. 2 (2022): L32. http://dx.doi.org/10.3847/2041-8213/ac96e7.

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Abstract Probing the solar corona is crucial to study the coronal heating and solar wind acceleration. However, the transient and inhomogeneous solar wind flows carry large-amplitude inherent Alfvén waves and turbulence, which make detection more difficult. We report the oscillation and propagation of the solar wind at 2.6 solar radii (Rs) by observation of China’s Tianwen and ESA’s Mars Express with radio telescopes. The observations were carried out on 2021 October 9, when one coronal mass ejection (CME) passed across the ray paths of the telescope beams. We obtain the frequency fluctuations

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Rozprawy doktorskie na temat "Frequency drift interferometry"

Roubeau-Tissot, Amaël. "Interférométrie à dérive de fréquence pour la mesure de la lumière parasite sur l'instrument spatial LISA." Electronic Thesis or Diss., Université Côte d'Azur, 2024. http://www.theses.fr/2024COAZ5036.

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LISA (Laser Interferometer Space Antenna) est un interféromètre spatial dédié à la détection des ondes gravitationnelles dans la gamme de fréquence [20 µHz-1 Hz], actuellement en développement (phase B). Ce projet international géré par l'ESA sera composé d'une constellation de trois satellites en formation triangulaire, chacun d'entre eux émettant deux faisceaux laser vers les deux autres satellites. Il y a donc au total 6 liens laser, et 6 unités, appelées MOSA (Moving Optical Sub-Assembly) chargées d'émettre et de recevoir les faisceaux, et de réaliser la mesure des variations de distance i

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Streszczenia konferencji na temat "Frequency drift interferometry"

Ai, Ke, Cunzheng Fan, Junfeng Chen, Hao Li, Zhijun Yan, and Qizhen Sun. "Low-Frequency Drift Compensation Method for Interferometry Fiber-Optic Vibration Sensing Using Sampling Matched Integral Fitting Difference." In 2024 Asia Communications and Photonics Conference (ACP) and International Conference on Information Photonics and Optical Communications (IPOC). IEEE, 2024. https://doi.org/10.1109/acp/ipoc63121.2024.10809773.

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Li, Xiuming. "Analysis on the drift of measured distance in laser frequency scanning interferometry." In Conference on Advanced Laser Technology and Application, edited by Zhiyi Wei, Jing Ma, Wei Shi, et al. SPIE, 2021. http://dx.doi.org/10.1117/12.2606540.

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Morrison, G. L., and B. Nelson. "ND-YAG Monitoring for DGV Application (Keynote Paper)." In ASME 2008 Fluids Engineering Division Summer Meeting collocated with the Heat Transfer, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/fedsm2008-55306.

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Doppler Global Velocimeters (DGV) requires a narrow bandwidth laser beam which can be accurately tuned to a desired frequency. One laser used for this application is an ND-YAG which is seeded using a laser diode. By adjusting the laser diode output, the frequency of the ND-YAG laser beam can be modified. This technique also narrows the bandwidth of the laser frequency to below 100 MHz. Monitoring this output is difficult due to the 9 ns pulse duration which makes normal interferometry techniques ineffective for the 10 to 20 MHz frequency resolution required. This paper will describe a system c

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Hjelme, Dag Roar, Alan Rolf Mickelson, L. Hollberg, and B. Dahmani. "Novel Optical Frequency Stabilization of Semiconductor Lasers." In Semiconductor Lasers. Optica Publishing Group, 1987. http://dx.doi.org/10.1364/sla.1987.tub4.

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Stable single-frequency, narrow-linewidth, tunable lasers are required in applications such as coherent optical communications, optical fiber sensoring and spectroscopy. One can reduce the frequency drift of semiconductor lasers by locking to a Fabry-Perot interferometer using an automatic-frequency-control loop with feedback to the injection current [1] or temperature [2]. More recently very fast electronic feedback systems have achieved laser linewidth reduction as well as center frequency stabilization [3]. In addition, a variety of methods have been developed to reduce semiconductor laser

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DeSlover, Daniel H., Dennis R. Slaughter, William M. Tulloch, and William E. White. "A Technique for Measuring Winds in the Lower Atmosphere Using Incoherent Doppler Lidar." In Optical Remote Sensing of the Atmosphere. Optica Publishing Group, 1993. http://dx.doi.org/10.1364/orsa.1993.pd.13.

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Wind speed is useful from a meteorological standpoint, in atmospheric modeling, and assessment of trace gas dispersal. A continuing effort is involved in improving the sensitivity of such measurements, and is exemplified by the literature.[1-10] The Mobile Atmospheric Research Laboratory (MARL) at Lawrence Livermore National Laboratory (LLNL) is currently developing a method to improve the sensitivity of wind sounding in the lower through middle atmosphere using a pair of Fabry-Perot interferometers in parallel. This technique, first described by Chanin, et al.[4], for the middle atmosphere us

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Bourbin, Y., A. Enard, M. Papuchon, C. Moronvalle, and M. Werner. "High Frequency Intrinsic Resonance in Traveling Wave Y-fed Directional Couplers." In Integrated and Guided Wave Optics. Optica Publishing Group, 1988. http://dx.doi.org/10.1364/igwo.1988.wd6.

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Very high speed modulation of guided light has been reported using directional coupler switches (ref. |1, 2|) or Mach-Zehnder interferometers (ref |3, 4, 5, 6|). In some applications base band operation is not necessary and band pass type modulators around a given frequency may be preferred. Such resonance has been predicted in ref |7| where switching diagrams of Y-fed directional couplers have been investigated. A Y-fed coupler as reported in ref |8|, appears to be the combination of a directional coupler switch and of a Y junction through which light is launched. This results in - 3 dB built

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Tao, Long, Zhigang Liu, and Weibo Zhang. "Auto-elimination of fiber optical path-length drift in a frequency scanning interferometer for absolute distance measurements." In SPIE Optical Engineering + Applications, edited by Erik Novak and James D. Trolinger. SPIE, 2015. http://dx.doi.org/10.1117/12.2186377.

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Hall, John L., and Dieter Hills. "Phase-stable laser sources for sub-Hz-linewidth optical spectroscopy." In OSA Annual Meeting. Optica Publishing Group, 1987. http://dx.doi.org/10.1364/oam.1987.wm1.

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We are investigating the problems of transferring the intrinsic stability of a thoughtfully designed and isolated stable interferometer into an equivalent frequency stability of the laser locked onto its fringe.1 Tests with two lasers independently locked to adjacent orders show locking precision below 50 mHz (1 × 10−16) for times ~1–100 s, degrading toward shorter times as t−1/2 due to finite SNR. Toward longer times performance degrades as t+1 due to changes in the systematic offsets. Locking to various orders gives an estimate that the locking accuracy is <2 Hz (4 × 10−15). Reductions in

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Min, Xiao, and H. J. Kimble. "Propagation of quantum fluctuations through passive optical systems." In OSA Annual Meeting. Optica Publishing Group, 1986. http://dx.doi.org/10.1364/oam.1986.tuj4.

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By employing the input-output theory of damped quantum systems developed by Gardiner and Collett,1 we discuss the propagation of nonclassical fields through optical systems containing frequency selective elements such as Fabry-Perot interferometers. Our results are of general applicability and are expressed in terms of the linearized drift and diffusion coefficients of the generalized Fokker-Planck equation describing the intracavity field of the nonlinear source. The two nonclassical effects of photon antibunching and squeezing are treated in detail with reference to the examples of intracavi

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