Title :
Comparison of independent optical frequency measurements using a portable iodine-stabilized Nd:YAG laser
Author :
Hong, Feng-Lei ; Ishikawa, Jun ; Sugiyama, Kazuhiko ; Onae, Atsushi ; Matsumoto, Hirokazu ; Ye, Jun ; Hall, John L.
Author_Institution :
Nat. Metrol. Inst. of Japan/Nat. Inst. of Adv. Ind. Sci. & Technol., Tsukuba, Japan
fDate :
4/1/2003 12:00:00 AM
Abstract :
A comparison of two independent absolute optical frequency measurements has been carried out between the National Metrology Institute of Japan/National Institute of Advanced Industrial Science and Technology (NMIJ/AIST), Tsukuba, Japan and the JILA (formerly the Joint Institute for Laboratory Astrophysics), Boulder, CO, using a portable iodine-stabilized Nd:YAG laser. The agreement between the two absolute measurements is better than the measurement uncertainty of 6.7×10-13 that can be attributed to the reproducibility limitations of the portable laser. This comparison is used to confirm the measured absolute frequency of an iodine-stabilized Nd:YAG laser at NMIJ/AIST (Y3), which is reported to the Consultative Committee for Length (CCL) for the determination of the absolute frequency value of iodine-stabilized Nd:YAG lasers.
Keywords :
frequency standards; laser frequency stability; laser variables measurement; measurement by laser beam; measurement uncertainty; I2; YAG:Nd; YAl5O12:Nd; independent absolute optical frequency measurement agreement; international frequency comparisons; laser stabilization; measurement standards; measurement uncertainty; molecular iodine; portable iodine-stabilized Nd:YAG lasers; portable laser reproducibility limitations; Extraterrestrial measurements; Frequency measurement; Gas lasers; Laser mode locking; Laser stability; Laser theory; Masers; Measurement uncertainty; Metrology; Ultrafast optics;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2003.811676
