Please use this identifier to cite or link to this item: https://doi.org/10.1109/JSTQE.2018.2827659
Title: Mid-Infrared Slow Light Engineering and Tuning in 1-D Grating Waveguide
Authors: Ma, Yiming 
DONG BOWEI 
Li, Bo 
Wei, Jingxuan 
Chang, Yuhua 
Ho, Chong Pei 
LEE CHENGKUO 
Keywords: Science & Technology
Technology
Physical Sciences
Engineering, Electrical & Electronic
Quantum Science & Technology
Optics
Physics, Applied
Engineering
Physics
Slow light
gratings
optical waveguides
dispersion
DELAY-BANDWIDTH PRODUCT
PHOTONIC CRYSTALS
SILICON PHOTONICS
LOW-DISPERSION
ENHANCEMENT
CHIP
SENSITIVITY
MODULATORS
PLATFORMS
DEVICE
Issue Date: 1-Nov-2018
Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation: Ma, Yiming, DONG BOWEI, Li, Bo, Wei, Jingxuan, Chang, Yuhua, Ho, Chong Pei, LEE CHENGKUO (2018-11-01). Mid-Infrared Slow Light Engineering and Tuning in 1-D Grating Waveguide. IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS 24 (6). ScholarBank@NUS Repository. https://doi.org/10.1109/JSTQE.2018.2827659
Abstract: © 1995-2012 IEEE. The design, fabrication, and characterization of 1-D grating waveguide as slow light structure working in mid-infrared (MIR) region are demonstrated for the first time. The effects of various structural parameters on slow light properties are investigated through theoretical analysis, simulation and experimental verification, providing guidance on slow light engineering in 1-D grating waveguide. By adjusting structural parameters, average group indices of 9.4-15.5 with bandwidths of 23-66 nm and normalized delay-bandwidth products of 0.093-0.164 are obtained. Thermo-optic tuning is also demonstrated with π phase shift and group index tuning from 23 to 33 at the wavelength of 3.9024 μm by applying 1.4 mA current. The proposed tunable 1-D grating slow light waveguide provides a promising platform for various MIR applications such as on-chip absorption-based biochemical sensors, tunable optical buffers, and thermo-optic modulators.
Source Title: IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
URI: https://scholarbank.nus.edu.sg/handle/10635/168950
ISSN: 1077-260X
1558-4542
DOI: 10.1109/JSTQE.2018.2827659
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