Title :
Long-term temperature stabilized measurement of ultra-low expansion Fabry-Perot cavity
Author :
Smid, Radek ; Cizek, Martin ; Buchta, Zdenek ; Lazar, Josef ; Cip, Ondrej
Author_Institution :
Inst. of Sci. Instrum., Brno, Czech Republic
Abstract :
The ultra low expansion cavities play a crucial role in laser stabilization, and they are essential in ion clocks. We present a method to measure absolute distance between mirrors of Fabry-Perot cavity (FPC) with a spacer from an ultra low expansion material and the changes of the distance caused by temperature variation with femtometer resolution. The FPC was placed into a temperature-stabilized vacuum stainless steel chamber.
Keywords :
clocks; distance measurement; measurement by laser beam; stainless steel; temperature measurement; FPC mirrors; absolute distance measurement; femtometer resolution; ion clocks; laser stabilization; long-term temperature stabilized measurement; temperature-stabilized vacuum stainless steel chamber; ultralow expansion Fabry-Perot cavity mirrors; ultralow expansion material;
Conference_Titel :
European Frequency and Time Forum (EFTF), 2012
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-1924-9
DOI :
10.1109/EFTF.2012.6502412
