## Frequency Uncertainty for Optically Referenced Femtosecond Laser Frequency Combs

2007
##### Authors
Ma, Long-Sheng
Bi, Zhiyi
Kim, Kyoungsik
Robertsson, Lennart
Zucco, Massimo
Windeler, Robert S.
Wilpers, Guido
Oates, Chris
Hollberg, Leo
Journal article
##### Published in
IEEE Journal of Quantum Electronics ; 43 (2007), 2. - pp. 139-146
##### Abstract
We present measurements and analysis of the currently known relative frequency uncertainty of femtosecond laser frequency combs (FLFCs) based onKerr-lens mode-locked Ti:sapphire lasers. Broadband frequency combs generated directly from the laser oscillator, as well as octave-spanning combs generated with nonlinear optical fiber are compared. The relative frequency uncertainty introduced by an optically referenced FLFC is measured for both its optical and microwave outputs. We find that the relative frequency uncertainty of the optical and microwave outputs of the FLFC can be as low as 8 x 10 -20 and 1.7 x 10 -18, with a confidence level of 95%, respectively. Photo-detection of the optical pulse train introduces a small amount of excess noise, which degrades the stability and subsequent relative frequency uncertainty limit of the microwave output to 2.6 x 10 -17.
530 Physics
##### Keywords
Femtosecond laser,frequency comb,optical frequency metrology
##### Cite This
ISO 690MA, Long-Sheng, Zhiyi BI, Albrecht BARTELS, Kyoungsik KIM, Lennart ROBERTSSON, Massimo ZUCCO, Robert S. WINDELER, Guido WILPERS, Chris OATES, Leo HOLLBERG, Scott A. DIDDAMS, 2007. Frequency Uncertainty for Optically Referenced Femtosecond Laser Frequency Combs. In: IEEE Journal of Quantum Electronics. 43(2), pp. 139-146. Available under: doi: 10.1109/JQE.2006.886836
BibTex
@article{Ma2007Frequ-5049,
year={2007},
doi={10.1109/JQE.2006.886836},
title={Frequency Uncertainty for Optically Referenced Femtosecond Laser Frequency Combs},
number={2},
volume={43},
journal={IEEE Journal of Quantum Electronics},
pages={139--146},
author={Ma, Long-Sheng and Bi, Zhiyi and Bartels, Albrecht and Kim, Kyoungsik and Robertsson, Lennart and Zucco, Massimo and Windeler, Robert S. and Wilpers, Guido and Oates, Chris and Hollberg, Leo and Diddams, Scott A.}
}

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