High Modulation Efficiency and Large Bandwidth Thin-Film Lithium Niobate Modulator for Visible Light

Bin Chen; Changjian Guo; Chijun Li; Kaixuan Chen; Liu Liu; Pengxin Chen; Ziliang Ruan

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High Modulation Efficiency and Large Bandwidth Thin-Film Lithium Niobate Modulator for Visible Light

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arxiv 2202.13323 v1 pith:JRXUJ2KD submitted 2022-02-27 physics.optics physics.app-ph

Chijun Li , Bin Chen , Ziliang Ruan , Pengxin Chen , Kaixuan Chen , Changjian Guo , Liu Liu This is my paper · ORCID

classification physics.opticsphysics.app-ph

keywords modulatorbandwidthlargelightlithiumlossniobatethin-film

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We experimentally demonstrate a visible light thin-film lithium niobate modulator at 532 nm. The waveguides feature a propagation loss of 2.2 dB/mm while a grating for fiber interface has a coupling loss of 5 dB. Our demonstrated modulator represents a low voltage-length product of 1.1 V*cm and a large bandwidth beyond 30 GHz.

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