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arXiv · 2304.13146

Carrier conversion from terahertz wave to dual-wavelength near-infrared light injection-locking to optical comb using asynchronous nonpolarimetric electro-optic downconversion with electro-optic polymer modulator

Yudai Matsumura·Yu Tokizane·Eiji Hase·Naoya Kuse·Takeo Minamikawa·Jun-ichi Fujikata·Hiroki Kishikawa·Masanobu Haraguchi·Yasuhiro Okamura·Takahiro Kaji·Akira Otomo·Isao Morohashi·Atsushi Kanno·Shintaro Hisatake·Takeshi Yasui
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Abstract

THz waves are promising wireless carriers for next-generation wireless communications, where a seamless connection from wireless to optical communication is required. In this study, we demonstrate carrier conversion from THz waves to dual-wavelength NIR light injection-locking to an optical frequency comb using asynchronous nonpolarimetric electro-optic downconversion with an electro-optic polymer modulator. THz wave in the W band was obtained as a stable photonic RF beat signal of 1 GHz with a signal-to-noise ratio of 25 dB via the proposed THz-to-NIR carrier conversion. In addition, the results imply the potential of the photonic detection of THz waves for wireless-to-optical seamless communication.

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Yudai Matsumura, Yu Tokizane, Eiji Hase, Naoya Kuse, Takeo Minamikawa, Jun-ichi Fujikata, Hiroki Kishikawa, Masanobu Haraguchi, Yasuhiro Okamura, Takahiro Kaji, Akira Otomo, Isao Morohashi, Atsushi Kanno, Shintaro Hisatake, Takeshi Yasui. 2023-04-25. Carrier conversion from terahertz wave to dual-wavelength near-infrared light injection-locking to optical comb using asynchronous nonpolarimetric electro-optic downconversion with electro-optic polymer modulator. https://doi.org/10.1364/oe.499472

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