Relevant bibliographies by topics / Space Optical Clock

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Space Optical Clock'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Space Optical Clock"

1

Boldbaatar, Enkhtuvshin, Donald Grant, Suelynn Choy, Safoora Zaminpardaz, and Lucas Holden. "Evaluating Optical Clock Performance for GNSS Positioning." Sensors 23, no. 13 (2023): 5998. http://dx.doi.org/10.3390/s23135998.

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Atomic clocks are highly precise timing devices used in numerous Positioning, Navigation, and Timing (PNT) applications on the ground and in outer space. In recent years, however, more precise timing solutions based on optical technology have been introduced as current technology capabilities advance. State-of-the-art optical clocks—predicted to be the next level of their predecessor atomic clocks—have achieved ultimate uncertainty of 1 × 10−18 and beyond, which exceeds the best atomic clock’s performance by two orders of magnitude. Hence, the successful development of optical clocks has drawn
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Cacciapuoti, L., A. Busso, R. Jansen, et al. "Atomic Clock Ensemble in Space." Journal of Physics: Conference Series 2889, no. 1 (2024): 012005. http://dx.doi.org/10.1088/1742-6596/2889/1/012005.

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Abstract The Atomic Clock Ensemble in Space (ACES) mission is developing high performance clocks and links for space to test Einstein’s theory of general relativity. From the International Space Station, the ACES payload will distribute a clock signal with fractional frequency stability and accuracy of 1 × 10−16 establishing a worldwide network to compare clocks in space and on the ground. ACES will provide an absolute measurement of Einstein’s gravitational redshift, it will search for time variations of fundamental constants, contribute to test topological dark matter models, and perform Sta
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Hoang, Thai M., Wei Zhang, Thanh Le, et al. "Progress in the miniature trapped ion optical clock development with 16 cc sealed trap tube." Journal of Physics: Conference Series 2889, no. 1 (2024): 012033. http://dx.doi.org/10.1088/1742-6596/2889/1/012033.

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Abstract Optical clocks have well surpassed the frequency stability performance of microwave clocks. They have been mainly limited to tabletop setups and large rack-mount systems. Miniaturizing optical clocks will make the new technology and capability more ubiquitously applied to applications from navigation to fundamental science. Here we aim to develop a miniature space optical clock (mSOC) with the size of a compact microwave clock and capable of achieving a short-term stability of 10−14 τ −1/2 and noise floor of 10−16. In this paper, we will describe the mSOC concept, discuss the experime
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Khabarova, Ksenia, Denis Kryuchkov, Alexander Borisenko, et al. "Toward a New Generation of Compact Transportable Yb+ Optical Clocks." Symmetry 14, no. 10 (2022): 2213. http://dx.doi.org/10.3390/sym14102213.

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Optical atomic clocks are currently one of the most sensitive tools making it possible to precisely test the fundamental symmetry properties of spacetime and Einstein’s theory of relativity. At the same time, the extremely high stability and accuracy of compact transportable optical clocks open new perspectives in important fields, such as satellite navigation, relativistic geodesy, and the global time and frequency network. Our project aimed to develop a compact transportable optical clock based on a single ytterbium ion. We present the first prototype of the Yb+ clock (298 kg in 1 m3) and pr
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Chen, Ying-Xin, Chi-Hua Zhou, Wei Tan, et al. "Development of Compact and Robust Physical System for Strontium Optical Lattice Clock." Applied Sciences 14, no. 4 (2024): 1551. http://dx.doi.org/10.3390/app14041551.

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Compact and robust optical clocks are significant in scientific research and engineering. Here, we present a physical system for a strontium atomic optical clock with dimensions of 465 mm × 588 mm × 415 mm and a weight of 66.6 kg. To date, this is one of the most compact physical systems ever reported. The application of the magnetic shielding box in this physical system allowed the effect of external magnetic field fluctuation on cold atoms to be negligible. The physical system passed rigorous environmental tests and remained operational. A wavelength meter integrated in this physical system
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Walker, Susan J., and Jürgen Jahns. "Optical clock distribution using integrated free-space optics." Optics Communications 90, no. 4-6 (1992): 359–71. http://dx.doi.org/10.1016/0030-4018(92)90290-8.

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Chen, Guangyao, Nan Xing, Chengpan Tang, and Zhiqiao Chang. "Clock Ensemble Algorithm Test in the Establishment of Space-Based Time Reference." Remote Sensing 15, no. 5 (2023): 1227. http://dx.doi.org/10.3390/rs15051227.

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A new concept of a space-based synchronized reference network is proposed with the development of an optical frequency reference and laser inter-satellite link. To build such time reference, three clock ensemble algorithms, namely the natural Kalman timescale (NKT) algorithm, the reduced Kalman timescale (RKT) algorithm, and the two-stage Kalman timescale (TKT) algorithm are considered. This study analyzes and compares the performance of these algorithms using BDS, GPS, and Galileo satellite clock data from the GFZ GNSS clock corrections, which will be used in constructing future space-based t
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Wang, Yebing, Xiaotong Lu, Benquan Lu, Dehuan Kong, and Hong Chang. "Recent Advances Concerning the 87Sr Optical Lattice Clock at the National Time Service Center." Applied Sciences 8, no. 11 (2018): 2194. http://dx.doi.org/10.3390/app8112194.

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We review recent experimental progress concerning the 87Sr optical lattice clock at the National Time Service Center in China. Hertz-level spectroscopy of the 87Sr clock transition for the optical lattice clock was performed, and closed-loop operation of the optical lattice clock was realized. A fractional frequency instability of 2.8 × 10−17 was attained for an averaging time of 2000 s. The Allan deviation is found to be 1.6 × 10−15/τ1/2 and is limited mainly by white-frequency-noise. The Landé g-factors of the (5s2)1S0 and (5s5p)3P0 states in 87Sr were measured experimentally; they are impor
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Piester, D., M. Rost, M. Fujieda, T. Feldmann, and A. Bauch. "Remote atomic clock synchronization via satellites and optical fibers." Advances in Radio Science 9 (July 29, 2011): 1–7. http://dx.doi.org/10.5194/ars-9-1-2011.

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Abstract. In the global network of institutions engaged with the realization of International Atomic Time (TAI), atomic clocks and time scales are compared by means of the Global Positioning System (GPS) and by employing telecommunication satellites for two-way satellite time and frequency transfer (TWSTFT). The frequencies of the state-of-the-art primary caesium fountain clocks can be compared at the level of 10−15 (relative, 1 day averaging) and time scales can be synchronized with an uncertainty of one nanosecond. Future improvements of worldwide clock comparisons will require also an impro
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Li, Wei, Qing Li, Keda He, and Lei Liu. "An Active Vibration Isolator for the Space Optical Clock." Instruments and Experimental Techniques 67, no. 2 (2024): 431–38. http://dx.doi.org/10.1134/s0020441224700349.

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Dissertations / Theses on the topic "Space Optical Clock"

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Smith, Lyndsie Laura. "A transportable strontium optical lattice clock towards space." Thesis, University of Birmingham, 2016. http://etheses.bham.ac.uk//id/eprint/7132/.

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This work presents the realisation and characterisation of the world’s smallest transportable optical lattice clock as part of the Space Optical Clocks 2 EU project built at the University of Birmingham. Housed in a transportable rack of dimensions 170 x 100 x 60 cm, such a device aims to measure the frequency of the doubly-forbidden 1S0−3P0 clock transition in 88Sr in an unprecedented compact apparatus as a major technological milestone towards an optical clock upon the International Space Station. A master optical clock in space would serve with unrivalled accuracy and stability to dissemina
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Kubíček, Michal. "MODELOVÁNÍ A IMPLEMENTACE SUBSYSTÉMŮ KOMUNIKAČNÍHO ŘETĚZCE V OBVODECH FPGA." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-233517.

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Most modern clock and data recovery circuits (CDR) are based on analog blocks that need to be redesigned whenever the technology process is to be changed. On the other hand, CDR based blind oversampling architecture (BO-CDR) can be completely designed in a digital process which makes its migration very simple. The main disadvantages of the BO-CDR that are usually mentioned in a literature are complexity of its digital circuitry and finite phase resolution resulting in larger jitter sensitivity and higher error rate. This thesis will show that those problems can be solved by designing a new alg
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Zhang, Pu. "Theory of transformation optics and invisibility cloak design." Doctoral thesis, KTH, Elektroteknisk teori och konstruktion, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-31673.

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Research on metamaterials has been growing ever since the first experimental realization of double negative media. The theory of transformation optics provides people with a perfect tool to make use of vast possibilities of the constitutive parameters for metamaterials. A lot of fascinating designs have been brought to us by transformation optics, with invisibility cloaks being the most intensely studied. The present thesis aims to develop the basic theory of transformation optics, and utilize it to design invisibility cloaks for various applications. After the background description of this f
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Books on the topic "Space Optical Clock"

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Sun, Xiaoli, Field Christopher T, and United States. National Aeronautics and Space Administration., eds. "Receiver design, performance analysis, and evaluation for space-borne laser altimeters and space-to-space laser ranging systems": Interim progress report on NASA grant NAG5-2232 : for the period of October 16, 1994 to April 15, 1995. Johns Hopkins University, Electrical & Computer Engineering, 1995.

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Sun, Xiaoli, Field Christopher T, and United States. National Aeronautics and Space Administration., eds. "Receiver design, performance analysis, and evaluation for space-borne laser altimeters and space-to-space laser ranging systems": Interim progress report on NASA grant NAG5-2232 : for the period of April 15, 1994 to October 15, 1994. the Johns Hopkins University, Electrical & Computer Engineering, 1994.

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Receiver design, performance analysis, and evaluation for space-borne laser altimeters and space-to-space laser ranging systems: Interim progress report on NASA grant NAG5-2232 ... for the period of April 15, 1996 to Oct. 14, 1996. National Aeronautics and Space Administration, 1996.

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Book chapters on the topic "Space Optical Clock"

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Ido, T., H. Hachisu, F. Nakagawa, and Y. Hanado. "Time Scales Steered by Optical Clocks." In Astrophysics and Space Science Proceedings. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-59909-0_19.

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Tino, Guglielmo M. "Atom Interferometers and Optical Clocks: New Quantum Sensors Based on Ultracold Atoms for Gravitational Tests in Earth Laboratories and in Space." In Astrophysics and Space Science Library. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-3735-0_21.

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Shabanloui, Akbar, Hu Wu, and Jürgen Müller. "Estimation of Temporal Variations in the Earth’s Gravity Field Using Novel Optical Clocks Onboard of Low Earth Orbiters." In International Association of Geodesy Symposia. Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/1345_2023_220.

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AbstractThe current generation of optical atomic clocks has reached a fractional frequency uncertainty of 1$$\times $$ × 10$$^{-18}$$ − 18 (and beyond) which corresponds to a geopotential difference of 0.1 m$$^{2}$$ 2 /s$$^{2}$$ 2 . Those gravitational potential differences can be observed as gravitational redshift when comparing the frequencies of optical clocks. Even temporal potential variations might be determined with precise novel optical atomic clocks onboard of low-orbiting satellites such as SLR-like (e.g. LAGEOS-1/2) and GRACE-like missions.In this simulation study, the potential of
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KLEIN, HUGH. "OPTICAL CLOCKS AND FREQUENCY METROLOGY FOR SPACE." In From Quantum to Cosmos. WORLD SCIENTIFIC, 2009. http://dx.doi.org/10.1142/9789814261210_0056.

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Conference papers on the topic "Space Optical Clock"

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Shafak, Kemal, Anan Dai, Erwin Cano Vargas, Michael Hagemann, and Franz X. Kärtner. "Optical-to-microwave clock synchronization with few-femtosecond residual timing jitter for space ground segments." In Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI, edited by Ramón Navarro and Ralf Jedamzik. SPIE, 2024. http://dx.doi.org/10.1117/12.3019657.

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Barwood, G. P., P. Gill, H. A. Klein, et al. "Trapped strontium ion optical clock." In International Conference on Space Optics 2006, edited by Errico Armandillo, Josiane Costeraste, and Nikos Karafolas. SPIE, 2017. http://dx.doi.org/10.1117/12.2308177.

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Maleki, Lute, Anatoliy Savchenkov, Wei Liang, et al. "Miniature atomic clock for space applications." In SPIE Optical Engineering + Applications, edited by Edward W. Taylor and David A. Cardimona. SPIE, 2015. http://dx.doi.org/10.1117/12.2189218.

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Sun, X., and Frederic Davidson. "Free space optical pulse position modulation communication with laser diode transmitter and avalanche photodiode receiver." In OSA Annual Meeting. Optica Publishing Group, 1988. http://dx.doi.org/10.1364/oam.1988.mk6.

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A direct detection optical communication system for use in an intersatellite link was constructed with an AIGaAs laser diode (Hitach-HL8314E, λ = 833.4 nm) as the transmitter and an avalanche photodiode (RCA C30902S) as the photodetector. The system used Q = 4 pulse position modulation (PPM) signaling and operated at 25 Mbits/s. The PPM slot clock at the receiver was recovered by using a transition detector followed by a phase lock loop (PLL). The PPM word clock was recovered by using a second PLL whose input consisted of back- to-back PPM pulse pairs contained in the received random PPM pulse
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Favard, P., Y. Folco, G. Guibaud, et al. "Engineering model of the optical space CS clock." In International Conference on Space Optics 2016, edited by Nikos Karafolas, Bruno Cugny, and Zoran Sodnik. SPIE, 2017. http://dx.doi.org/10.1117/12.2296164.

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Zarschizky, Helmut, Holger Karstensen, Christian Gerndt, Ekkehard Klement, and Hartmut W. Schneider. "Holographic optical elements for free-space clock distribution." In Fibers '91, Boston, MA, edited by Gnanalingam Arjavalingam and James Pazaris. SPIE, 1991. http://dx.doi.org/10.1117/12.25569.

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Prestage, John D., Sang K. Chung, Lawrence Lim, and Thanh Le. "Hg ion atomic clock for deep space navigation and science." In Optical Engineering + Applications, edited by R. Jason Jones. SPIE, 2007. http://dx.doi.org/10.1117/12.734725.

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Tian, X., J. X. Han, S. Zhang, H. X. Zou, and H. Chang. "Research on the optical system for space optical clock at NTSC." In Selected Proceedings of the Chinese Society for Optical Engineering Conferences held July 2016, edited by Yueguang Lv, Weimin Bao, and Guangjun Zhang. SPIE, 2016. http://dx.doi.org/10.1117/12.2256661.

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Schmeissner, R., A. Douahi, I. Barberau, et al. "Towards an engineering model of Optical Space Cs Clock." In 2016 European Frequency and Time Forum (EFTF). IEEE, 2016. http://dx.doi.org/10.1109/eftf.2016.7477843.

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Spellmeyer, Neal W., Clement D. Burton, David O. Caplan, et al. "Sensitive clock recovery for multi-rate DPSK optical receivers." In 2015 IEEE International Conference on Space Optical Systems and Applications (ICSOS). IEEE, 2015. http://dx.doi.org/10.1109/icsos.2015.7425084.

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Reports on the topic "Space Optical Clock"

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Moran, Matthew. Decarbonizing Mobility with Liquid Hydrogen. SAE International, 2024. http://dx.doi.org/10.4271/epr2024015.

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<div class="section abstract"><div class="htmlview paragraph">Liquid hydrogen (LH2) is playing a key role in decarbonization of the global energy landscape. Its large-scale continuous use in the space industry provides a foundation for transitioning state-of-the-art capabilities to other sectors. Key advancements in materials, cryogenics, and system optimization are being applied to reduce costs and increase performance for various mobile and stationary use cases. However, some unsettled topics remain to be addressed related to production, liquefaction, storage, distribution, safet
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