W-band optical modulators using electro-optic polymer waveguides and patch antenna arrays | Zendy

Takahiro Kaji | Zendy; Isao Morohashi | Zendy; Yukihiro Tominari | Zendy; Norihiko Sekine | Zendy; Toshiki Yamada | Zendy; Akira Otomo | Zendy

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W-band optical modulators using electro-optic polymer waveguides and patch antenna arrays

Author(s) -

Takahiro Kaji,

Isao Morohashi,

Yukihiro Tominari,

Norihiko Sekine,

Toshiki Yamada,

Akira Otomo

Publication year - 2021

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.434028

Subject(s) - materials science , cladding (metalworking) , optics , optoelectronics , optical fiber , waveguide , antenna (radio) , sideband , radio frequency , telecommunications , physics , computer science , metallurgy

In this study, W-band (75-110 GHz) antenna-coupled optical modulators with a cyclo-olefin polymer (COP) lower cladding, an electro-optic (EO) polymer waveguide, and a gap-embedded patch antenna array were fabricated using a transfer and bonding method of a poled EO polymer film. A carrier-to-sideband ratio (CSR) of 56 dB corresponding to an optical phase shift of 3 mrad was obtained under irradiation with 100 GHz electromagnetic waves with a power of 12.8 W/m 2 . Our devices have the potential to achieve highly efficient wireless-optical signal conversion in radio-over-fiber (RoF) systems.

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