Comparison of independent optical frequency measurements using a portable iodine-stabilized Nd:YAG laser

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 Astrop...

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Bibliographic Details
Published in:IEEE transactions on instrumentation and measurement 2003-04, Vol.52 (2), p.240-244
Main Authors: Feng-Lei Hong, Ishikawa, J., Sugiyama, K., Onae, A., Matsumoto, H., Jun Ye, Hall, J.L.
Format: Article
Language:English
Subjects:
Boulders
Carbon monoxide
Extraterrestrial measurements
Frequency measurement
Gas lasers
Instrumentation
Laser mode locking
Laser stability
Laser theory
Lasers
Masers
Measurement uncertainty
Metrology
Optical frequency
Portability
Reproducibility
Ultrafast optics
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Summary: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/spl times/10/sup -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.
ISSN:0018-9456
1557-9662
DOI:10.1109/TIM.2003.811676