Title :
Optical frequency measurement comparison using fiber laser combs between CMS and NMIJ
Author :
Jin-Long Peng ; Ren-Huei Shu ; Tze-An Liu ; Inaba, Hiromi ; Hosaka, Kazumoto ; Yasuda, Makoto ; Akamatsu, Daisuke ; Onae, Atsushi ; Feng-Lei Hong
Author_Institution :
Center for Meas. Stand., Ind. Technol. Res. Inst., Hsinchu, Taiwan
Abstract :
An Er-fiber laser comb with repetition frequency of 250 MHz made by the Center for Measurement Standards (CMS), Taiwan was shipped to the National Metrology Institute of Japan (NMIJ) to compare with the NMIJ fiber laser comb by simultaneously measuring the frequency of an optical cavity-stabilized Nd:YAG laser at 1064 nm. The measured average frequency difference is 32 mHz and corresponds to a relative difference of 1.1×10-16, which is limited by the measurement time. Furthermore, method for determining the comb mode number using two combs with large difference of repetition rate is proposed.
Keywords :
erbium; fibre lasers; frequency measurement; neodymium; optical variables measurement; yttrium compounds; CMS; Center for Measurement Standards; Er; Er-fiber laser comb mode number; NMIJ; National Metrology Institute of Japan; Nd:YAG; Taiwan; frequency 250 MHz; frequency 32 mHz; optical cavity-stabilized Nd:YAG laser; optical frequency measurement; wavelength 1064 nm; Fiber lasers; Frequency measurement; Laser mode locking; Measurement by laser beam; Optical fibers; Optical variables measurement; fiber laser; frequency standard; mode-locked laser; optical frequency comb; optical frequency measurement;
Conference_Titel :
European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC), 2013 Joint
Conference_Location :
Prague
DOI :
10.1109/EFTF-IFC.2013.6702124
