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Laser interferometer using a dual interference method

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3 Author(s)
K. H. Yang ; Nanjing University, Institute of Acoustics, Nanjing, China ; L. Chen ; S. Y. Zhang

A stabilised Michelson interferometer system using a new interference mode has been developed, in which a specially designed beam-splitter produces two complementary interference patterns. With differential detection, the laser intensity noise is efficiently eliminated, and the system is simpler and stabler. The measured displacement sensitivity is 10¿2 A¿/ ¿(HZ).

Published in:

Electronics Letters  (Volume:23 ,  Issue: 13 )