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Article
Mirror Deformation and Zero Thermal Expansion Temperature Shift in Optical Cavity due to Radiative Heating
A detailed study of the effects resulting in fluctuations and shifts of eigenfrequencies of optical cavities is necessary for their application in optical frequency, time, and length standards, experiments on ...
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Article
Thermo-Optical Bistability in a Compact High-Q Cavity at a Wavelength of 1550 nm
The bistability effect caused by radiation absorption in mirrors of a compact high-Q cavity at a wavelength of 1550 nm is studied. The effect leads to a hysteresis of the cavity transmission when scanning the ...
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Article
Active Pointing System for the Transmission of Ultrastable Optical Frequency Signals through an Open-Air Link
An active pointing system has been developed and created for an atmospheric transfer link for ultrastable optical frequency signals. This system can significantly decrease the deviations of laser beam directio...
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Article
Compact High-Finesse ULE Cavities for Laser Frequency Stabilization
Laser systems stabilized by reference cavities have many applications in science and modern technologies. In this research, a compact high-finesse cavity made of ULE (ultra low expansion) glass in a compact va...
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Article
Comparison of Three Ultrastable Lasers with a Femtosecond Frequency Comb
The comparison of optical oscillators is used both to determine their spectral characteristics and to perform fundamental research. To describe each individual laser system, it is necessary to compare at least...
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Article
Partial Compensation of Thermal Noise in the Fundamental Mode of an Optical Cavity
Thermal noise of optical cavities limits the accuracy of many experiments on precision laser spectroscopy and interferometry. The study of the physical properties of this noise opens up opportunities for creat...
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Article
Long ULE Cavities with Relative Fractional Frequency Drift Rate below 5 × 10–16/s for Laser Frequency Stabilization
Two ultrastable laser systems for the clock transition spectroscopy in the strontium frequency standard are developed. The high stability of laser radiation frequency is provided by the active loop for frequen...