Transducer design of acousto-optic modulators

Ji Wu; Zhihong Xu; Kunying Ji; Guoqiang Lv; Chengqiang Wang; Xiaoyan Li

doi:10.1117/12.2580333

5 November 2020 Transducer design of acousto-optic modulators

Ji Wu, Zhihong Xu, Kunying Ji, Guoqiang Lv, Chengqiang Wang, Xiaoyan Li

Proceedings Volume 11562, AOPC 2020: Advanced Laser Technology and Application; 1156219 (2020) https://doi.org/10.1117/12.2580333
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China

Abstract

The acousto-optic modulator (AOMs) have great applications in the fields of laser technology, information processing and micro-processing, which is mainly applied to control and modulate the intensity of light at high frequency. The diffraction efficiency (DE) is the important parameter of AOMs. Researchers have studied many influencing factors of diffraction efficiency. However, few research on internal transducer parameter design in AOMs. In this paper, we propose an electrode optimization scheme to obtain AOMs with high diffraction efficiency. Combining the divergence angle ratio, we experimentally demonstrated the optimal size of the electrode. Furthermore, we model the sound pressure field in COMSOL Multiphysics® software, and analyze the DE of the optimized apodized transducer and the conventional transducer AOMs. The results show that comparing with rectangular transducer, optimized apodized shaped transducer can increase the DE of AOMs by 8.33% on average.

Citation Download Citation

Ji Wu, Zhihong Xu, Kunying Ji, Guoqiang Lv, Chengqiang Wang, and Xiaoyan Li "Transducer design of acousto-optic modulators", Proc. SPIE 11562, AOPC 2020: Advanced Laser Technology and Application, 1156219 (5 November 2020); https://doi.org/10.1117/12.2580333

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available