Tunable Electromagnetically Induced Transparency-Like Spectrum in Lithium Niobate on Insulator Platform With Narrow Linewidth

Wenqi Yu; Shuangxing Dai; Yiru Zhao; Qinfeng Zhao; Jinye Li; Jianguo Liu

doi:10.1109/JPHOT.2020.3025626

IEEE Photonics Journal (Jan 2020)

Tunable Electromagnetically Induced Transparency-Like Spectrum in Lithium Niobate on Insulator Platform With Narrow Linewidth

Wenqi Yu,
Shuangxing Dai,
Yiru Zhao,
Qinfeng Zhao,
Jinye Li,
Jianguo Liu

Affiliations

Wenqi Yu: ORCiD; State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China
Shuangxing Dai: State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China
Yiru Zhao: State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China
Qinfeng Zhao: ORCiD; College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, China
Jinye Li: ORCiD; State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China
Jianguo Liu: ORCiD; State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China

DOI: https://doi.org/10.1109/JPHOT.2020.3025626
Journal volume & issue: Vol. 12, no. 5
pp. 1 – 8

Abstract

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An all-pass racetrack-resonator-Bragg gratings (APRR-BG) on thin-film lithium niobate on insulator (LNOI) based coupling resonant system is proposed to generate tunable electromagnetically induced transparency (EIT)-like transmission. The structure is a normal all-pass racetrack-resonator with two Bragg gratings inscribed within the straight waveguides, which introduces two different optical pathways in essence, inducing EIT-like spectrum as a result. We investigate the linewidth, and tunability of the EIT-like spectrum, and manufacturing tolerance of the resonant system by utilising the transfer matrix method. The simulation results indicate an extremely narrow linewidth of several picometers, and a high voltage sensitivity of 0.338 GHz/V@1550 nm, which indicates potential for optical filter, optical switching, and sensing of the system.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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