Title :
International Comparisons of Transportable Femtosecond Laser Frequency Combs
Author :
Long-Sheng Mau ; Bi, Zhiyi ; Bartels, Albrecht ; Robertsson, Lennart ; Zucco, Massimo ; Windeler, Robert S. ; Wilpers, Robert S. ; Oates, Chris ; Hollberg, Leo ; Diddams, Scott A.
Author_Institution :
Bur. Int. des Poids et Mesures, Sevres
Abstract :
Two types of comparisons using transportable femtosecond laser combs have been performed in France and the USA, respectively. The agreement among the combs, when referenced to a hydrogen maser, is on the sub-hertz level at 563 THz. When the combs are referenced to an optical standard, the agreement among four combs was much improved and found to be < 1 mHz at 456 THz
Keywords :
frequency measurement; laser variables measurement; masers; measurement by laser beam; 456 THz; 563 THz; femtosecond laser combs; hydrogen maser; optical standard; Atom optics; Frequency; Hydrogen; Laser excitation; Mirrors; Nonlinear optics; Optical harmonic generation; Optical noise; Optical pumping; Ultrafast optics;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2004 Conference on
Conference_Location :
London
Print_ISBN :
0-7803-8494-6
Electronic_ISBN :
0-7803-8494-6
DOI :
10.1109/CPEM.2004.305376
