Title :
Ultralow long-term drift of cryogenic optical reference resonators
Author :
Storz, R. ; Jack, K. ; Braxmaier, C. ; Mlynek, J. ; Schiller, S.
Author_Institution :
Fak. fur Phys., Konstanz Univ., Germany
Abstract :
Summary form only given. Laser frequency stabilization is central to high resolution spectroscopy, to the development of optical frequency standards, and for fundamental tests based on clock-clock comparisons. Usually, glass ceramic reference cavities operated near room temperature are used. These exhibit a drift. We have recently demonstrated that cryogenic sapphire reference cavities can be used to stabilize lasers. Here, we report direct proof of an ultralow long-term drift of this system by comparison of a cryogenic cavity with a completely independent molecular reference. The molecular reference is the hyperfine transition of molecular iodine (I/sub 2/).
Keywords :
cryogenics; frequency standards; hyperfine structure; laser cavity resonators; laser frequency stability; sapphire; I/sub 2/; clock-clock comparisons; completely independent molecular reference; cryogenic cavity; cryogenic optical reference resonators; cryogenic sapphire reference cavities; fundamental tests; high resolution spectroscopy; hyperfine transition; laser frequency stabilization; molecular iodine; optical frequency standards; ultralow long-term drift; Ceramics; Clocks; Cryogenics; Frequency; Glass; Laser stability; Optical resonators; Spectroscopy; Standards development; Testing;
Conference_Titel :
Lasers and Electro-Optics, 1998. CLEO 98. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-339-0
DOI :
10.1109/CLEO.1998.676391