Author: Petr Balling
Publisher: LAP Lambert Academic Publishing
ISBN: 9783847331681
Category :
Languages : en
Pages : 80
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Book Description
This thesis is dedicated to measurement of optical frequencies with applications in metrology. The frequency/time interval is the best measurable quantity. The invention of the femtosecond frequency comb technique greatly simplified linking the radio-frequency and the optical-frequency standards. A primary wavelength standard for optical communications was developed in the first part of this work: the distributed feedback (DFB) laser diode was frequency stabilized to sub-Doppler spectral line of acetylene at 1540 nm and its research, investigation of properties and absolute frequency measurements are described. The implementation and testing of commercial femtosecond comb makes second part of this work. Software for online frequency evaluation, tests of counting quality and frequency stabilization of the comb to optical frequency standard - iodine stabilized Nd: YAG laser - are described.
Author: John L. Hall
Publisher: SPIE-International Society for Optical Engineering
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 296
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Book Description
Author: Pasquale Maddaloni
Publisher: Taylor & Francis
ISBN: 1439841535
Category : Science
Languages : en
Pages : 730
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Book Description
Foreword by Nobel laureate Professor Theodor W. Hch of Ludwig-Maximilians-UniversitätMunchenBased on the authors' experimental work over the last 25 years, Laser-Based Measurements for Time and Frequency Domain Applications: A Handbook presents basic concepts, state-of-the-art applications, and future trends in optical, atomic, and molecular physic
Author: Jun Ye
Publisher: Springer Science & Business Media
ISBN: 0387237917
Category : Science
Languages : en
Pages : 373
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Book Description
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.
Author: Yaakov Shevy
Publisher: SPIE-International Society for Optical Engineering
ISBN:
Category : Science
Languages : en
Pages : 278
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Book Description
Author: Andre N. Luiten
Publisher: Springer Science & Business Media
ISBN: 3540449914
Category : Science
Languages : en
Pages : 396
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Book Description
This text on precision frequency measurement and its key enabling techniques includes reviews written by some of the most experienced researchers in their respective fields. This text should prove useful to researchers just entering the field of frequency metrology and standards, or equally well to the experienced practitioner.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 19
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Book Description
The focus of the work is the development of precision laser techniques and their application to physical problems of outstanding scientific interest, including laser frequency stabilization at/below the Hertz level, cold atomic 'fountains', optical frequency standards, ultra-resolution spectroscopy, measurement of optical frequencies, and advanced tests of physical principles. The main thrusts in the near future are to complete our frequency measurements of the stabilized Nd laser, bring the stable lasers together with the slow atoms, and to demonstrate a new and precise spectroscopic technique based on intracavity molecular dispersion in overtone bands.
Author: Heike Christopher
Publisher: Cuvillier Verlag
ISBN: 3736963998
Category : Science
Languages : en
Pages : 206
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Book Description
Optical frequency combs (OFC) have revolutionized various applications in applied and fundamental sciences that rely on the determination of absolute optical frequencies and frequency differences. The latter requires only stabilization of the spectral distance between the individual comb lines of the OFC, allowing to tailor and reduce system complexity of the OFC generator (OFCG). One such application is the quantum test of the universality of free fall within the QUANTUS experimental series. Within the test, the rate of free fall of two atomic species, Rb and K, in micro-gravity will be compared. The aim of this thesis was the development of a highly compact, robust, and space-suitable diode laser-based OFCG with a mode-locked optical spectrum in the wavelength range around 780 nm. A diode laser-based OFCG was developed, which exceeds the requirements with a spectral bandwidth > 16 nm at 20 dBc, a comb line optical power > 650 nW (at 20 dBc), a pulse repetition rate of 3.4 GHz, and an RF linewidth of the free-running pulse repetition rate < 10 kHz. To realize a proof-of-concept demonstrator module, the diode laser-based OFCG was hybrid-integrated into a space-suitable technology platform that has been developed for future QUANTUS experiments. Proof of sufficient RF stability of the OFCG was provided by stabilizing the pulse repetition rate to an external RF reference. This resulted in a stabilized pulse repetition rate with an RF linewidth smaller than 1.4 Hz (resolution limited), thus exceeding the requirement. The developed diode laser-based OFCG represents an important step towards an improved comparison of the rate of free fall of Rb and K quantum gases within the QUANTUS experiments in micro-gravity.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 13
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Book Description
The focus of the work is the development of precision laser techniques and their application to physical problems of outstanding scientific interest, including laser frequency stabilization at/below the Hertz level, cold atomic 'fountains', optical frequency standards, ultra-resolution spectroscopy, measurement of optical frequencies, and advanced tests of physical principles. The main thrusts in the near future are to complete our frequency measurements of the stabilized Nd laser, to exploit our new and precise spectroscopic technique based on intracavity molecular dispersion in overtone bands, to get a new atom trap for Sr atoms on line, and to bring the stable lasers together with the slow atoms.
Author: Frank Träger
Publisher: Springer Science & Business Media
ISBN: 3642194095
Category : Science
Languages : en
Pages : 1704
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Book Description
This new edition features numerous updates and additions. Especially 4 new chapters on Fiber Optics, Integrated Optics, Frequency Combs and Interferometry reflect the changes since the first edition. In addition, major complete updates for the chapters: Optical Materials and Their Properties, Optical Detectors, Nanooptics, and Optics far Beyond the Diffraction Limit. Features Contains over 1000 two-color illustrations. Includes over 120 comprehensive tables with properties of optical materials and light sources. Emphasizes physical concepts over extensive mathematical derivations. Chapters with summaries, detailed index Delivers a wealth of up-to-date references.
