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  4. Laser-to-RF phase detection with femtosecond precision for remote reference phase stabilization in particle accelerators
 
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Laser-to-RF phase detection with femtosecond precision for remote reference phase stabilization in particle accelerators

Citation Link: https://doi.org/10.15480/882.1387
Publikationstyp
Doctoral Thesis
Date Issued
2017
Sprache
English
Author(s)
Lamb, Thorsten  
Advisor
Brinkmeyer, Ernst  
Referee
Jacob, Arne  
Schlarb, Holger  
Title Granting Institution
Technische Universität Hamburg-Harburg
Place of Title Granting Institution
Hamburg
Examination Date
2016-06-24
Institut
Optische Kommunikationstechnik E-11(H)  
TORE-DOI
10.15480/882.1387
TORE-URI
http://tubdok.tub.tuhh.de/handle/11420/1390
First published in
DESY-THESIS;2017-016
Number in series
2017-016
Citation
Lamb,Thorsten: Laser-to-RF Phase Detection with Femtosecond Precision for Remote Reference Phase Stabilization in Particle Accelerators – DESY-THESIS-2017-016 . Verlag Deutsches Elektronen Synchrotron: Hamburg, 2017. ISSN : 1435-8085. doi: 10.3204/PUBDB-2017-02117
Publisher DOI
10.3204/PUBDB-2017-02117
Publisher
Verlag Deutsches Elektronen Synchrotron
The invention of a femtosecond stable Laser-to-RF phase detector allows to measure with femtosecond precision the relative phase between a phase stable optical reference and an RF signal. Thereby one can stabilize RF reference signals in modern FELs on a femtosecond scale. A pulsed optical synchronization system is used to deliver the required optical reference signals. The L2RF phase detector is based on an integrated Mach-Zehnder modulator (MZM) in which the phase error between both signals is encoded in an amplitude modulation of the optical pulse train. Different configurations for different operation scenarios have been evaluated. A full mathematical representation has been derived. The impact of multiple error sources has been investigated. Error sources of the measurement setup have been identified and eliminated. The femtosecond performance has been verified with two different prototypes. The achieved stability of 3.6fs over 12h is currently unmatched.
Subjects
Femtosekundenbereich
Freie-Elektronen-Laser
Hochfrequenz
Integrierte Optoelektronik
Interferometer
Mikrowellenoszillator
Optoelektronische Schaltung
Phasenmessung
Phasenrauschen
Phasenregelkreis
Phasensynchronisierung
Rauschspektrum
Pulsed optical synchronization system
Timing jitter
Phase noise
microwave synthesis
Free-electron laser
Laser-to-RF phase detector
L2RF
DDC Class
620: Ingenieurwissenschaften
Lizenz
https://creativecommons.org/licenses/by-sa/4.0/
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