Silicon-organic hybrid thermo-optic switch based on a slot waveguide directional coupler

被引：4

作者：

Chiang, Li-Yuan ^{[1
]}

Wang, Chun-Ta ^{[2
]}

Pappert, Steve ^{[1
]}

Yu, Paul K. L. ^{[1
]}

机构：

[1] Univ Calif San Diego, Dept Elect & Comp Engn, La Jolla, CA 92122 USA

[2] Natl Sun Yat Sen Univ, Dept Photon, Kaohsiung 80424, Taiwan

来源：

OPTICS LETTERS | 2022年 / 47卷 / 15期

关键词：

PHASE-SHIFTER; ON-INSULATOR; THERMAL-CONDUCTIVITY; PHOTONICS; MODULATOR;

D O I：

10.1364/OL.467858

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose and demonstrate a passively biased 2 x 2 thermo-optic switch with high power efficiency and fast response time. The device benefits from the highly concentrated optical field of a slot waveguide mode and the strong thermo-optic effect of a nematic liquid crystal (NLC) cladding. The NLC fills the nano-slot region and is aligned by the subwavelength grating inside. The measured power consumption and thermal time constant are 0.58 mW and 11.8 mu s, respectively, corresponding to a figure-of-merit of 6.8 mW mu s. The proposed silicon-organic hybrid device provides a new solution to design thermo-optic actuators having low power consumption and fast operation speed. (C) 2022 Optica Publishing Group

引用

页码：3940 / 3943

页数：4

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