Ultimate stability of active optical frequency standards

Optical frequency standards and clocks

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Delivery of High-Stability Optical and Microwave Frequency Standards over an Optical Fiber Network

Optical and radio frequency standards located in JILA and National Institute of Standards and Technology (NIST) laboratories have been connected through a 3.45-km optical fiber link. An optical frequency standard based on an iodine-stabilized Nd:YAG laser at 1064 nm (with an instability of ;4 3 10214 at 1 s) has been transferred from JILA to NIST and simultaneously measured in both laboratories...

Optical frequency standards and measurement

This paper celebrates the progress in optical frequency standards and measurement, won by the 40 years of dedicated work of world-wide teams working in frequency standards and frequency measurement. Amazingly, after this time interval, the field is now simply exploding with new measurements and major advances of convenience and precision, with the best fractional frequency stability and potenti...

Optical Frequency Standards and Measurements

We describe the performance characteristics and frequency measurements of two high-accuracy high-stability lasercooled atomic frequency standards. One is a 657-nm (456-THz) reference using magneto-optically trapped Ca atoms, and the other is a 282-nm (1064-THz) reference based on a single Hg ion confined in an RF-Paul trap. A femtosecond mode-locked laser combined with a nonlinear microstructur...

A New Era of Frequency Standards and Optical Frequency Measurement