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Optical Frequency References for Laser Interferometry
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SYSNO ASEP 0441272 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Optical Frequency References for Laser Interferometry Author(s) Hrabina, Jan (UPT-D) RID, ORCID, SAI
Šarbort, Martin (UPT-D) RID, ORCID, SAI
Acef, O. (FR)
Du Burck, F. (FR)
Chiodo, N. (FR)
Číp, Ondřej (UPT-D) RID, SAI, ORCID
Lazar, Josef (UPT-D) RID, ORCID, SAINumber of authors 7 Source Title Optics and Measurement Conference 2014 (Proceedings of SPIE 9442). - Bellingham : SPIE, 2014 - ISSN 0277-786X - ISBN 9781628415575 Pages 94420f: 1-6 Number of pages 6 s. Publication form Online - E Action Optics and Measurement Conference 2014 (OaM 2014) Event date 07.10.2014-10.10.2014 VEvent location Liberec Country CZ - Czech Republic Event type WRD Language eng - English Country US - United States Keywords laser standards ; iodine absorption cells ; spectroscopy ; laser frequency stabilization Subject RIV BH - Optics, Masers, Lasers R&D Projects GB14-36681G GA ČR - Czech Science Foundation (CSF) TA02010711 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) TA01010995 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) TE01020233 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) LO1212 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) ED0017/01/01 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) 7AMB14FR040 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UPT-D - RVO:68081731 UT WOS 000349403500014 EID SCOPUS 84922824813 DOI 10.1117/12.2086262 Annotation Optical frequency references for laser standards based on molecular iodine absorption cells represent one of the most used tool for frequency stabilization of lasers operating in a visible spectral range. In the industry oriented laser measurements and similar laser interferometry applications performed at atmospheric conditions, a refractive index of air plays a role of main uncertainty contributor. In these cases there is no need to use technologically complicated and expensive iodine references made of pure fused silica with precise pressure control of absorpbing media. A set of iodine cells made of borosilicate glass was filled with certain amount of absorbing media to define the saturation point of iodine inside. A combination of these two approaches (pyrex material and controlled saturation pressure of iodine) allows us to simplify the laser stabilization setup (there is no need of additional iodine pressure level control) and reduce the overall reference’s costs with ensuring of sufficient frequency stability of the system at the same time. Spectral properties of manufactured cells were tested by hyperfine transitions linewidth measurement and comparison with results from traditional fused silica cells was done to investigate the long-term iodine purity inside the references. As the transitions linewidth method shows a very high sensitivity to iodine purity level, this method is proposed to be an alternative approach in investigation of contamination in iodine absorption cells where traditionally used techniques - laser induced fluorescence (LIF) and absolute frequency shifts measurement - can not be used. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2016
Number of the records: 1