A Space Rubidium Pulsed Optical Pumped Clock Current Status Results And Future Activities

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A Space Rubidium Pulsed Optical Pumped Clock Current Status Results And Future Activities

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Author :
language : en
Publisher:
Release Date : 2009

A Space Rubidium Pulsed Optical Pumped Clock Current Status Results And Future Activities written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.

Since the year 2000, Selex Galileo activity on Space Frequency Standards has been pursuing the development of a Passive Hydrogen Maser (PHM), presently the primary clock of the Galileo Navigation Constellation. A consortium has been established in 2007 with one of the best scientific laboratories in the European Time-Frequency community: the Istituto Nazionale di Ricerca Metrologica - INRiM (I) in order to demonstrate that the POP technique is suitable for space applications. The name of the project, Maser POP, comes from a very promising technique studied and refined by INRiM in order to achieve performance close to that of a passive hydrogen maser, but with dimensions and power consumption closer to a rubidium clock. Under an Italian Space Agency ASI contract, a feasibility study has been completed in 2008 concerning the manufacture of a clock breadboard and the preliminary design of the three units composing the clock: Space Physics Unit, Optical Unit, and Electronic Unit. This paper summarizes the outcome of this study in terms of Breadboard (BB) results (where a frequency stability on the order of 1.2x10( -12)tau( -0.5) has been measured) and the critical areas that shall be correctly addressed for the project objective's full achievement. The development plan of the Maser POP is presented together with an overview of expected characteristics, in terms of mass and power consumption, realistically optimized taking into account the needs of the space market. A preliminary schedule is also presented concerning future activities aiming at the development of an Engineering Model (EM). This plan includes the qualification of the clock against the Galileo environmental requirements. Also, these further activities will be supported by the Italian Space Agency (ASI) in the frame of the Space Atomic Clock Development program.

The Quantum Physics Of Atomic Frequency Standards

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Author : Jacques Vanier
language : en
Publisher: CRC Press
Release Date : 2015-08-05

The Quantum Physics Of Atomic Frequency Standards written by Jacques Vanier and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-08-05 with Science categories.

This volume covers advances in atomic frequency standards (atomic clocks) from the last several decades. It explains the use of techniques, such as laser optical pumping, coherent population trapping, laser cooling, and electromagnetic and optical trapping, in the implementation of classical microwave and optical atomic frequency standards. The authors describe the basic physics behind the operation of atomic clocks, explore new frequency standards that provide better stability and accuracy than conventional standards, and illustrate the application of atomic clocks in various areas.

Journal Of The Institution Of Electronics And Telecommunication Engineers

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Author : Institution of Electronics and Telecommunication Engineers (India)
language : en
Publisher:
Release Date : 1981

Journal Of The Institution Of Electronics And Telecommunication Engineers written by Institution of Electronics and Telecommunication Engineers (India) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Electronics categories.

Scientific And Technical Aerospace Reports

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Author :
language : en
Publisher:
Release Date : 1988

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Aeronautics categories.

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Laser Physics At The Limits

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Author : Hartmut Figger
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-29

Laser Physics At The Limits written by Hartmut Figger and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-29 with Science categories.

Published on the occasion of Theodor Hänsch's 60th Birthday emphasis is placed on precision related to results in a variety of fields, such as atomic clocks, frequency standards, and the measurement of physical constants in atomic physics. Furthermore, illustrations and engineering applications of the fundamentals of quantum mechanics are widely covered. It has contributions by Nobel prize winners Norman F. Ramsey, Steven Chu, and Carl E. Wieman.

Time From Earth Rotation To Atomic Physics

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Author : Dennis D. McCarthy
language : en
Publisher: Cambridge University Press
Release Date : 2018-10-18

Time From Earth Rotation To Atomic Physics written by Dennis D. McCarthy and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-18 with Science categories.

This accessible reference presents the evolution of concepts of time and methods of time keeping, for historians, scientists, engineers, and educators. The second edition has been updated throughout to describe twentieth- and twenty-first-century advances, progress in devices, time and cosmology, the redefinition of SI units, and the future of UTC.

From Sundials To Atomic Clocks

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Author : James Jespersen
language : en
Publisher: Courier Corporation
Release Date : 1999-01-01

From Sundials To Atomic Clocks written by James Jespersen and has been published by Courier Corporation this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-01-01 with Science categories.

Clear and accessible introduction to the concept of time examines measurement, historic timekeeping methods, uses of time information, role of time in science and technology, and much more. Over 300 illustrations.

Femtosecond Optical Frequency Comb Principle Operation And Applications

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Author : Jun Ye
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-06-15

Femtosecond Optical Frequency Comb Principle Operation And Applications written by Jun Ye and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-06-15 with Science categories.

Over the last few years, there has been a convergence between the fields of ultrafast science, nonlinear optics, optical frequency metrology, and precision laser spectroscopy. These fields have been developing largely independently since the birth of the laser, reaching remarkable levels of performance. On the ultrafast frontier, pulses of only a few cycles long have been produced, while in optical spectroscopy, the precision and resolution have reached one part in Although these two achievements appear to be completely disconnected, advances in nonlinear optics provided the essential link between them. The resulting convergence has enabled unprecedented advances in the control of the electric field of the pulses produced by femtosecond mode-locked lasers. The corresponding spectrum consists of a comb of sharp spectral lines with well-defined frequencies. These new techniques and capabilities are generally known as “femtosecond comb technology. ” They have had dramatic impact on the diverse fields of precision measurement and extreme nonlinear optical physics. The historical background for these developments is provided in the Foreword by two of the pioneers of laser spectroscopy, John Hall and Theodor Hänsch. Indeed the developments described in this book were foreshadowed by Hänsch’s early work in the 1970s when he used picosecond pulses to demonstrate the connection between the time and frequency domains in laser spectroscopy. This work complemented the advances in precision laser stabilization developed by Hall.

Time And Frequency Theory And Fundamentals

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Author : Byron Emerson Blair
language : en
Publisher:
Release Date : 1974

Time And Frequency Theory And Fundamentals written by Byron Emerson Blair and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with Atomic frequency standards categories.

The document is a tutorial Monograph describing various aspects of time and frequency (T/F). Included are chapters relating to elemental concepts of precise time and frequency; basic principles of quartz oscillators and atomic frequency standards; historical review, recent progress, and current status of atomic frequency standards; promising areas for developing future primary frequency standards; relevance of frequency standards to other areas of metrology including a unified standard concept; statistics of T/F data analysis coupled with the theory and construction of the NBS atomic time scale; an overview of T/F dissemination techniques; and the standards of T/F in the USA. The Monograph addresses both the specialist in the field as well as those desiring basic information about time and frequency. The authors trace the development and scope of T/F technology, its improvement over periods of decades, its status today, and its possible use, applications, and development in days to come.

Publications Of The National Institute Of Standards And Technology Catalog

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Author : National Institute of Standards and Technology (U.S.)
language : en
Publisher:
Release Date : 1994

Publications Of The National Institute Of Standards And Technology Catalog written by National Institute of Standards and Technology (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.