FREQUENCY STABILIZED AMMONIA LASER SYSTEM FOR PROBING THE 24 THZ CLOCK TRANSITION OF A TRAPPED BARIUM ION

Authors
SIEMSEN KJ MADEJ AA WHITFORD BG
Citation
Kj. Siemsen et al., FREQUENCY STABILIZED AMMONIA LASER SYSTEM FOR PROBING THE 24 THZ CLOCK TRANSITION OF A TRAPPED BARIUM ION, IEEE journal of quantum electronics, 31(10), 1995, pp. 1764-1773
Citations number
8
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE journal of quantum electronics → ACNP
ISSN journal
00189197
Volume
31
Issue
10
Year of publication
1995
Pages
1764 - 1773
Database
ISI
SICI code
0018-9197(1995)31:10<1764:FSALSF>2.0.ZU;2-6
Abstract
The design, performance and frequency stability of an optically pumped ammonia laser operating on the sP(8,6) transition of (NH3)-N-15 at 12 .48 mu m wavelength are discussed. The short term frequency stability was tested by heterodyning two similar lasers. An Allan deviation of 2 . 10(-11) for averaging times from 10(-4) s to 1 s was achieved for t he free running laser. Absolute values of the laser frequency were obt ained by measuring against the NRC H4 hydrogen maser standard with the help of the NRC frequency chain. A scan across a narrow fine-structur e transition in a single trapped barium ion provided a final test for the overall stability.