Compact femtosecond-laser-based optical clockwork
- 3 May 2001
- proceedings article
- Published by SPIE-Intl Soc Optical Eng
- Vol. 4269, 77-84
- https://doi.org/10.1117/12.424456
Abstract
We describe in detail an optical clockwork based on a 1 GHz repetition rate femtosecond laser and silica microstructure optical fiber. This system has recently been used for the absolute frequency measurements of the Ca and Hg+ optical standards at the National Institute of Standards and Technology (NIST). The simplicity of the system makes it an ideal clockwork for dividing down high optical frequencies to the radio frequency domain where they can readily be counted and compared to the existing cesium frequency standard.Keywords
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