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Long-term Absolute Wavelength Stability of Acetylene-stabilized Reference Laser at 1533 nm

Kossek T., Czułek D., Koba M.

Journal of Telecommunications and Information Technology

2016

nr 4

88--93

The second harmonic generation process in Periodically Poled Lithium Niobate (PPLN) has been applied in order to measure frequency of reference laser locked to acetylene absorption peak 12C2H2 (P13) (1533 nm) against optical frequency synthesizer. The measurement results have been compared to the results obtained using different techniques for the same reference laser during the past 10 years in other laboratories.

Perspective for Using the Optical Frequency Standards in Realization of the Second

Radecki K.

Journal of Telecommunications and Information Technology

2009

nr 3

111-115

The second is currently defined by the microwave transition in cesium atoms. Optical clocks offer the prospects of stabilities and reproducibilities that exceed those of cesium. This paper reviews the progress in frequency standards based on optical transitions, recommended by International Committee for Weights and Measures, as a secondary representation of the second. The operation of these standards is briefly described and factors affecting stability and accuracy of these and some new optical clocks are discussed.