[8p-N402-1~16] CS.3 Code-sharing Session of 3.5&3.7

2:15 PM - 2:30 PM JST(5:15 AM - 5:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[8p-N402-4] Measurement of Surface Acoustic Waves Using a Fiber-Based Sagnac Interferometer

〇(D)Kazuki Maezawa¹, Shinichi Watanabe¹ (1.Keio Univ.)

Keywords:

surface acoustic wave,interferometer,dual comb

In this study, we developed a high-precision method for measuring the absolute displacement of surface acoustic waves (SAWs) by using a fiber-based Sagnac interferometer combined with two frequency-stabilized pulsed lasers (dual-comb). Phase modulation was applied to the SAW, and its displacement over one oscillation period was measured and fitted with a sine wave, yielding an amplitude of approximately 326 pm.