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Simultaneous laser frequency stabilization to an optical cavity and an iodine frequency reference

Sanjuan, Josep and Abich, Klaus and Blümel, Ludwig and Gohlke, Martin and Gualani, Vivek and Oswald, Markus and Wegehaupt, Timm and Schuldt, Thilo and Braxmaier, Claus (2021) Simultaneous laser frequency stabilization to an optical cavity and an iodine frequency reference. Optics Letters, 46. Optical Society of America. doi: 10.1364/OL.413419. ISSN 0146-9592.

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In this Letter, we demonstrate a method to combine a molecular iodineabsolute frequency reference with a high-finesse optical cavity in asingle laser to take advantage of the frequency stability propertiesof both systems at different time scales. The result is a laser exhibiting the long-term and short-term stability levels of the iodinefrequency reference and optical cavity, respectively. The method usesfrequency offset side-band locking and an acousto-optical modulatordriven ac-coupled servo-loop to correct the iodine's short-termfrequency fluctuations. Experimental results show cavity-limited stability above 1 Hz of 10^(-15) 1/rtHz and iodine stability below 10 mHz of 10^(-13) 1/rtHz. In terms of the Allan deviation, this corresponds to stability levels close to the 10^(-15) at 1 s and 10^(-14) for observation times >100 s.

Item URL in elib:https://elib.dlr.de/139573/
Document Type:Article
Title:Simultaneous laser frequency stabilization to an optical cavity and an iodine frequency reference
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Sanjuan, JosepUniversity of FloridaUNSPECIFIED
Abich, KlausKlaus.Abich (at) dlr.deUNSPECIFIED
Blümel, LudwigLudwig.Bluemel (at) dlr.deUNSPECIFIED
Gohlke, MartinMartin.Gohlke (at) dlr.deUNSPECIFIED
Gualani, Vivekvivek.GualaniGualani (at) dlr.deUNSPECIFIED
Oswald, Markusmarkus.oswald (at) dlr.deUNSPECIFIED
Wegehaupt, TimmTimm.Wegehaupt (at) dlr.deUNSPECIFIED
Schuldt, Thilothilo.schuldt (at) dlr.deUNSPECIFIED
Braxmaier, Clausclaus.braxmaier (at) dlr.deUNSPECIFIED
Date:11 January 2021
Journal or Publication Title:Optics Letters
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1364/OL.413419
Publisher:Optical Society of America
Keywords:Hybrid, lock, optical, Cavity, iodine, frequency, stability
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Systems Engineering Optische Systeme (old)
Location: Bremen , Oberpfaffenhofen , Ulm
Institutes and Institutions:Institute of Space Systems > Systems Enabling Technologies
Institute of Communication and Navigation > Navigation
Institute of Quantum Technologies > Quantum Metrology
Deposited By: Hamann, Ines
Deposited On:15 Dec 2020 09:44
Last Modified:12 Jan 2021 22:03

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