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A Compact Mode-locked Diode Laser System for High Precision Frequency Comparison Experiments

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Author :
Release : 2021
Genre :
Kind : eBook
Book Rating : 992/5 ( reviews)

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Book Synopsis A Compact Mode-locked Diode Laser System for High Precision Frequency Comparison Experiments by : Heike Christopher

Download or read book A Compact Mode-locked Diode Laser System for High Precision Frequency Comparison Experiments written by Heike Christopher. This book was released on 2021. Available in PDF, EPUB and Kindle. Book excerpt:

A compact mode-locked diode laser system for high precision frequency comparison experiments (Band 64)

Download A compact mode-locked diode laser system for high precision frequency comparison experiments (Band 64) PDF Online Free

Author :
Release : 2021-04-09
Genre : Science
Kind : eBook
Book Rating : 998/5 ( reviews)

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Book Synopsis A compact mode-locked diode laser system for high precision frequency comparison experiments (Band 64) by : Heike Christopher

Download or read book A compact mode-locked diode laser system for high precision frequency comparison experiments (Band 64) written by Heike Christopher. This book was released on 2021-04-09. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Mode-locked Diode Laser for Precision Optical Frequency Measurements

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Author :
Release : 2008
Genre : Mode-locked lasers
Kind : eBook
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Book Synopsis Mode-locked Diode Laser for Precision Optical Frequency Measurements by : Brian DeSalvo

Download or read book Mode-locked Diode Laser for Precision Optical Frequency Measurements written by Brian DeSalvo. This book was released on 2008. Available in PDF, EPUB and Kindle. Book excerpt:

Quantum Precision Measurement and Cold Atom Physics

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Release : 2022-09-23
Genre : Science
Kind : eBook
Book Rating : 296/5 ( reviews)

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Book Synopsis Quantum Precision Measurement and Cold Atom Physics by : Jingbiao Chen

Download or read book Quantum Precision Measurement and Cold Atom Physics written by Jingbiao Chen. This book was released on 2022-09-23. Available in PDF, EPUB and Kindle. Book excerpt: Ever since the invention of the cesium atomic clock in 1955, quantum frequency standards have seen considerable development over the decades, as a representative of quantum precision measurement. The progress in frequency measurements achieved in the past allowed one to perform quantum precision measurements of other physical and technical quantities with unprecedented precision, whenever they could be traced back to a frequency measurement. Using atomic transitions as frequency reference, quantum frequency standards are far less susceptible to external perturbations, and the identity of microscopic particles allows easy replication of a quantum standard with the same frequency. With laser cooling and trapping, cold atomic ensembles eliminate Doppler shift broadening, and have become the go-to quantum reference when precision and new physics are pursued. The advancement of laser cooling and cold atom physics, in addition to novel physical matter states such as Bose-Einstein Condensation, give rise to new experimental techniques in quantum precision measurement, especially quantum frequency standards, such as cesium fountain clocks dictating the SI second, as well as optical lattice clocks and single-ion optical clocks pushing the frontier of quantum metrology. Other areas of quantum metrology, such as gravitometers and magnetometers, also benefit greatly from cold atoms. For practical applications, quantum frequency standards are usually required to be compact and portable, and thermal atoms in the form of atomic beams or vapor cells are utilized. Commercially available quantum frequency standards such as cesium beam clocks or rubidium clocks have become the cornerstone of navigation and timekeeping. Compact optical clocks based on various laser spectroscopic techniques have also been developed. As researchers strive to break through the limits of accurate quantum measurement and atomic temperature, new fields such as precise measurement, quantum computing and quantum simulation based on cold atoms are further opened up, and challenges still exist to explore new physical phenomena in the field of cold atoms. In honor of Prof. Yiqiu Wang on the occasion of his 90th birthday, the main goal of this Research Topic is to provide a platform to exhibit the recent achievements and reveal the future challenges in quantum precision measurement, as well as studies of cold atom physics with quantum metrology, closely related to the long-term scientific research areas of Prof. Yiqiu Wang. Both Original Research and Review articles are encouraged. Topics of interest to this collection include, but are not limited to: • Quantum precision measurements • Microwave atomic clocks and their applications • Optical frequency standards, laser spectroscopy, and their applications • Quantum measurement based on cold atom • Quantum computation and quantum simulation based on cold atom

Scientific and Technical Aerospace Reports

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Author :
Release : 1995
Genre : Aeronautics
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by . This book was released on 1995. Available in PDF, EPUB and Kindle. Book excerpt:

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