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Updated: Apr 20, 2026

Fabrication and Characterization of Superconducting Resonators
Published on: May 21, 2016
Design of vibration compensation interferometer for Experimental Advanced Superconducting Tokamak
1Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People's Republic of China.
Abstract:
A vibration compensation interferometer (wavelength at 0.532 μm) has been designed and tested for Experimental Advanced Superconducting Tokamak (EAST). It is designed as a sub-system for EAST far-infrared (wavelength at 432.5 μm) poloarimeter/interferometer system. Two Acoustic Optical Modulators have been applied to produce the 1 MHz intermediate frequency. The path length drift of the system is lower than 2 wavelengths within 10 min test, showing the system stability. The system sensitivity has been tested by applying a periodic vibration source on one mirror in the system. The vibration is measured and the result matches the source period. The system is expected to be installed on EAST by the end of 2014.
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