Reducing the linewidth of a diode laser below 30 Hz by stabilization to a reference cavity with a finesse above 10(5)

Authors
Schoof, A Grunert, J Ritter, S Hemmerich, A
Citation
A. Schoof et al., Reducing the linewidth of a diode laser below 30 Hz by stabilization to a reference cavity with a finesse above 10(5), OPTICS LETT, 26(20), 2001, pp. 1562-1564
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS LETTERS
ISSN journal
01469592 → ACNP
Volume
26
Issue
20
Year of publication
2001
Pages
1562 - 1564
Database
ISI
SICI code
0146-9592(20011015)26:20<1562:RTLOAD>2.0.ZU;2-R
Abstract
An extended-cavity diode laser operating in the Littrow configuration emitt ing near 657 mn is stabilized through its injection current to a reference cavity with a finesse of more than 10(5) and a corresponding resonance line width of 14 kHz. The laser linewidth is reduced from a few megahertz to a v alue below 30 Hz. The compact and robust setup appears ideal as a portable optical frequency standard that uses the calcium intercombination line. (c) 2001 Optical Society of America.