| Author(s): |
Dirk Heinecke; Albrecht Bartels; Tara M. Fortier; Danielle Braje; Leo Hollberg; Scott A. Diddams; |
| Title: |
Optical frequency stabilization of a 10 GHz Ti:sapphire frequency comb by saturated absorption spectroscopy in 87Rubidium |
| Published: |
November 04, 2009 |
| 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 |
| Pages: |
7 pp. |
| Keywords: |
femtosecond laser frequency comb;high repetition comb;saturation spectroscopy;stabilization |
| Research Areas: |
Physics, Laser Physics, Time and Frequency |
| PDF version: |
 Click here to retrieve PDF version of paper (463KB) |
