Abstract

In this paper, we introduce and analyze both experimentally and theoretically multiple-band frequency locking, which becomes possible in an acousto-optic (AO) system with optoelectronic feedback. This effect is observed in a system combining a collinear AO cell and positive electronic feedback. The feedback signal is formed with the optical heterodyning effect, which occurs at the AO cell output and takes place in the special regime of collinear AO diffraction. It is shown for the first time, to the best of our knowledge, that frequency locking is possible in this system when connecting an external RF generator not only in one band near the self-oscillation frequency, but in several bands. The existence of as many as nine frequency-locking bands is predicted. The number of frequency-locking bands and their widths depend on the feedback gain and RF generator signal magnitude.

© 2020 Optical Society of America

Applications of the frequency locking effect in acousto-optic systems for control of optical radiation spectral composition

S. N. Mantsevich and V. I. Balakshy
J. Opt. Soc. Am. B 36(3) 728-735 (2019)

Examination of optoelectronic feedback effect on collinear acousto-optic filtration

Sergey Mantsevich and Vladimir Balakshy
J. Opt. Soc. Am. B 35(5) 1030-1039 (2018)

Possibilities of wide-angle tellurium dioxide acousto-optic cell application for the optical frequency comb generation

Sergey N. Mantsevich, Maxim I. Kupreychik, and Vladimir I. Balakshy
Opt. Express 28(9) 13243-13259 (2020)

Analysis of frequency-shifting loops in integer and fractional Talbot conditions: electro-optic versus acousto-optic modulation

Hongzhi Yang, Marc Brunel, Marc Vallet, Haiyang Zhang, and Changming Zhao
J. Opt. Soc. Am. B 37(11) 3162-3169 (2020)

Method for the generation of microwave frequency combs based on a Vernier optoelectronic feedback loop

Zhiqiang Shen, Chenfei Jin, Jie Yang, Siqi Zhang, Meng Tang, and Keke Wang
Opt. Express 28(23) 35118-35127 (2020)