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Setup for a long-term stable optical cavity

Wegehaupt, Timm and Sanjuan, Josep and Gohlke, Martin and Abich, Klaus and Schuldt, Thilo and Braxmaier, Claus (2019) Setup for a long-term stable optical cavity. DPG Tagung, 10.-15. März 2019, Rostock.

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Official URL: https://www.dpg-verhandlungen.de/year/2019/conference/rostock/part/q/session/14/contribution/6


Optical frequency references based on optical cavities have multiple applications in modern physics, including actual and future satellite missions. While they are usually used in order to reach high frequency stabilities on short integration times about 1 s up to 100 s, space-based tests of Special Relativity such as e.g. proposed within the BOOST mission, which has the goal to realize a Kennedy-Thorndike experiment in a low-Earth orbit, require a long-term stable optical frequency reference based on an optical cavity. We developed a compact and mechanical stable setup using an NPRO-type Nd:YAG laser at a wavelength of 1064 nm which is stabilized to an 8.7 cm long cubic ULE cavity (NPL design) with a Finesse of 400 000. The cavity has a calculated thermal noise limit caused by Brownian motion at the 4x10^(-16) level. For improved long-term stability, the cavity is mounted within a five-fold thermal shielding. We will present first results.

Item URL in elib:https://elib.dlr.de/133026/
Document Type:Conference or Workshop Item (Speech)
Title:Setup for a long-term stable optical cavity
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wegehaupt, TimmTimm.Wegehaupt (at) dlr.deUNSPECIFIED
Gohlke, MartinMartin.Gohlke (at) dlr.deUNSPECIFIED
Abich, KlausKlaus.Abich (at) dlr.deUNSPECIFIED
Schuldt, ThiloDLR-RY, BremenUNSPECIFIED
Braxmaier, ClausDLR, BremenUNSPECIFIED
Date:11 March 2019
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Optical Resonator, frequency reference
Event Title:DPG Tagung
Event Location:Rostock
Event Type:national Conference
Event Dates:10.-15. März 2019
Organizer:Deutsche Physikalische Gesellschaft
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Systems Engineering Optische Systeme
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Systems Enabling Technologies
Deposited By: Hamann, Ines
Deposited On:19 Dec 2019 13:00
Last Modified:19 Dec 2019 13:00

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