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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 26, Iss. 20 — Oct. 15, 2001
  • pp: 1562–1564

Reducing the linewidth of a diode laser below 30 Hz by stabilization to a reference cavity with a finesse above 105

A. Schoof, J. Grünert, S. Ritter, and A. Hemmerich  »View Author Affiliations


Optics Letters, Vol. 26, Issue 20, pp. 1562-1564 (2001)
http://dx.doi.org/10.1364/OL.26.001562


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Abstract

An extended-cavity diode laser operating in the Littrow configuration emitting near 657 nm is stabilized through its injection current to a reference cavity with a finesse of more than 105 and a corresponding resonance linewidth of 14 kHz. The laser linewidth is reduced from a few megahertz to a value below 30 Hz. The compact and robust setup appears ideal as a portable optical frequency standard that uses the calcium intercombination line.

© 2001 Optical Society of America

OCIS Codes
(020.0020) Atomic and molecular physics : Atomic and molecular physics
(120.3940) Instrumentation, measurement, and metrology : Metrology
(300.6260) Spectroscopy : Spectroscopy, diode lasers
(300.6360) Spectroscopy : Spectroscopy, laser

Citation
A. Schoof, J. Grünert, S. Ritter, and A. Hemmerich, "Reducing the linewidth of a diode laser below 30 Hz by stabilization to a reference cavity with a finesse above 105," Opt. Lett. 26, 1562-1564 (2001)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-26-20-1562

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