MEASUREMENT OF THE THERMAL-EXPANSION COEFFICIENT OF AN ALL-SAPPHIRE OPTICAL CAVITY

Authors
TAYLOR CT NOTCUTT M WONG EK MANN AG BLAIR DG
Citation
Ct. Taylor et al., MEASUREMENT OF THE THERMAL-EXPANSION COEFFICIENT OF AN ALL-SAPPHIRE OPTICAL CAVITY, IEEE transactions on instrumentation and measurement, 46(2), 1997, pp. 183-185
Citations number
8
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
Journal title
IEEE transactions on instrumentation and measurement → ACNP
ISSN journal
00189456
Volume
46
Issue
2
Year of publication
1997
Pages
183 - 185
Database
ISI
SICI code
0018-9456(1997)46:2<183:MOTTCO>2.0.ZU;2-W
Abstract
We present measurements of the frequency-temperature dependence of an all-sapphire Fabry-Perot optical cavity to be used as an optical frequ ency reference, Measurements were made by tracking the frequency of th e cavity relative to a second high-stability cryogenic sapphire-spaced cavity-a technique with impressive resolution for measurements of the coefficient of thermal expansion (CTE), Measurements presented here c over the temperature range of 11K to 26 K, We find that the CTE of the all sapphire cavity for these temperatures is given by alpha(cavity) = (7.7 +/- 0.9) x 10(-13)T((3.23+/-0.05)).