@inproceedings{ab9190dfedd741639d53cf58c9fccaa4,
title = "Optical Frequency Divider with 21 Digits",
abstract = "Optical frequency divider (OFD) can convert an optical frequency from one optical clock to another or to the microwave region with an accurate frequency ratio. A low-noise, high precision OFD has been realized based on a Ti:sapphire mode-locked femtosecond laser. By comparing with the frequency ratio between the fundamental and the second harmonic of a 1064 nm laser, we demonstrate that the OFD has a fractional frequency division instability of 10-18 at 1 s and a fractional frequency division uncertainty of 1.4× 10-21. The remarkable numbers support frequency division of the best optical clocks in the world without degrading their performance.",
keywords = "Fabry-Perot cavity, Ti:sapphire femtosecond laser, optical clock, optical frequency comb, precision measurement",
author = "Yuan Yao and Yanyi Jiang and Hongfu Yu and Zhiyi Bi and Longsheng Ma",
note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 2018 Conference on Precision Electromagnetic Measurements, CPEM 2018 ; Conference date: 08-07-2018 Through 13-07-2018",
year = "2018",
month = oct,
day = "19",
doi = "10.1109/CPEM.2018.8500948",
language = "英语",
series = "CPEM 2018 - Conference on Precision Electromagnetic Measurements",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "CPEM 2018 - Conference on Precision Electromagnetic Measurements",
address = "美国",
}