High Modulation Efficiency and Large Bandwidth Thin-Film Lithium Niobate Modulator for Visible Light
Chijun Li, Bin Chen, Ziliang Ruan, Pengxin Chen, Kaixuan Chen,, Changjian Guo, Liu Liu
TL;DR
This paper reports the experimental development of a thin-film lithium niobate modulator operating at 532 nm, achieving high modulation efficiency and a bandwidth exceeding 30 GHz, suitable for visible light applications.
Contribution
It introduces a novel visible light lithium niobate modulator with low voltage-length product and high bandwidth, advancing integrated photonics for visible spectrum.
Findings
Propagation loss of 2.2 dB/mm
Coupling loss of 5 dB
Bandwidth beyond 30 GHz
Abstract
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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Taxonomy
TopicsPhotonic and Optical Devices · Photorefractive and Nonlinear Optics · Advanced Fiber Optic Sensors