NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Precision tests of femtosecond laser optical frequency synthesizers
Published
Author(s)
Long-Sheng Ma, Lennart Robertsson, Massimo Zucco, Zhiyi Bi, Robert Windeler, A Bartels, G Wilpers, Christopher W. Oates, Leo W. Hollberg, Scott Diddams
Abstract
We compare the accuracy of femtosecond laser optical frequency synthesizers that employ microstructured fibers with those that directly generate a broadband output. No limitation of either system is found at fractional frequency levels of 1x10-18.
Ma, L.
, Robertsson, L.
, Zucco, M.
, Bi, Z.
, Windeler, R.
, Bartels, A.
, Wilpers, G.
, Oates, C.
, Hollberg, L.
and Diddams, S.
(2004),
Precision tests of femtosecond laser optical frequency synthesizers, CLEO, Conf. Lasers and Electro-Optics Proc., Balitmore, MD, US, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=50121
(Accessed October 18, 2025)