Heinecke, D.
, Bartels, A.
, Fortier, T.
, Braje, D.
, Hollberg, L.
and Diddams, S.
(2009),
Optical frequency stabilization of a 10 GHz Ti:sapphire frequency comb by saturated absorption spectroscopy in 87Rubidium, Physical Review A (Atomic, Molecular and Optical Physics), [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=903059
(Accessed October 1, 2025)
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Optical frequency stabilization of a 10 GHz Ti:sapphire frequency comb by saturated absorption spectroscopy in 87Rubidium
Published
Author(s)
, Albrecht Bartels, , , Leo Hollberg,
Abstract
The high power per mode of a recently-developed 10 GHz femtosecond Ti:sapphire frequency comb permits nonlinear Doppler-free saturation spectroscopy in 87Rubidium with a single mode of the comb. We use this access to the natural linewidth of the Rubidium D2 line to effectively stabilize the optical frequencies of the comb with precision of 7 10-12 in 1 second of averaging. The repetition rate is stabilized to a microwave reference. The stability of the 10 GHz comb is characterized using optical heterodyne with an independent self-referenced 1 GHz comb. In addition, we present alternative stabilization approaches for high repetition rate frequency combs and evaluate their expected stabilities.Citation
Physical Review A (Atomic, Molecular and Optical Physics)
Volume
80
Pub Type
Journals
Download Paper
Keywords
femtosecond laser frequency comb, high repetition comb, saturation spectroscopy, stabilization
Citation
Issues
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Created November 4, 2009, Updated February 19, 2017