Radio-Frequency-to-Optical Conversion using Acoustic and Optical Whispering Gallery Modes

• URL: http://arxiv.org/abs/2003.06556v1
• Date: Sat, 14 Mar 2020 05:07:01 GMT
• Title: Radio-Frequency-to-Optical Conversion using Acoustic and Optical Whispering Gallery Modes
• Authors: Rekishu Yamazaki, Ayato Okada, Atsushi Noguchi, Shingo Akao, Yusuke Tsukahara, Kazushi Yamanaka, Nobuo Takeda, Yutaka Tabuchi, Koji Usami, Yasunobu Nakamura
• Abstract summary: We report an electro-optomechanical system, where the overlapping WGMs of acoustic and optical waves along the equator strongly couple to each other. The triple-resonance phase-matching condition provides a large enhancement of the Brillouin scattering only in a single sideband.
• Score: 0.243788455857269
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Whispering gallery modes (WGMs), circulating modes near the surface of a spheroidal material, have been known to exhibit high quality factors for both acoustic and electromagnetic waves. Here, we report an electro-optomechanical system, where the overlapping WGMs of acoustic and optical waves along the equator of a dielectric sphere strongly couple to each other. The triple-resonance phase-matching condition provides a large enhancement of the Brillouin scattering only in a single sideband, and conversion from the input radio-frequency signal exciting the acoustic mode to the output optical signal is observed.

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