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Title: Optical nonreciprocal transmission in an asymmetric silicon photonic crystal structure

Abstract

An optical nonreciprocal transmission (ONT) is realized by employing the nonlinear effects in a compact asymmetric direct-coupled nanocavity-waveguide silicon photonic crystal structure with a high loaded quality factor (Q{sub L}) of 42 360 and large extinction ratio exceeding 30 dB. Applying a single step lithography and successive etching, the device can realize the ONT in an individual nanocavity, alleviating the requirement to accurately control the resonance of the cavities. A maximum nonreciprocal transmission ratio of 21.1 dB as well as a working bandwidth of 280 pm in the telecommunication band are obtained at a low input power of 76.7 μW. The calculated results by employing a nonlinear coupled-mode model are in good agreement with the experiment.

Authors:
; ; ; ; ;  [1];  [1];  [2]
  1. Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China)
  2. (China)
Publication Date:
OSTI Identifier:
22486142
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 22; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ASYMMETRY; CONTROL; CRYSTAL STRUCTURE; ETCHING; NONLINEAR PROBLEMS; QUALITY FACTOR; RESONANCE; SILICON; TRANSMISSION; WAVEGUIDES

Citation Formats

Wu, Zheng, Chen, Juguang, Ji, Mengxi, Huang, Qingzhong, Xia, Jinsong, Wang, Yi, E-mail: yingwu2@126.com, E-mail: ywangwnlo@mail.hust.edu.cn, Wu, Ying, E-mail: yingwu2@126.com, E-mail: ywangwnlo@mail.hust.edu.cn, and School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei 430074. Optical nonreciprocal transmission in an asymmetric silicon photonic crystal structure. United States: N. p., 2015. Web. doi:10.1063/1.4936597.
Wu, Zheng, Chen, Juguang, Ji, Mengxi, Huang, Qingzhong, Xia, Jinsong, Wang, Yi, E-mail: yingwu2@126.com, E-mail: ywangwnlo@mail.hust.edu.cn, Wu, Ying, E-mail: yingwu2@126.com, E-mail: ywangwnlo@mail.hust.edu.cn, & School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei 430074. Optical nonreciprocal transmission in an asymmetric silicon photonic crystal structure. United States. doi:10.1063/1.4936597.
Wu, Zheng, Chen, Juguang, Ji, Mengxi, Huang, Qingzhong, Xia, Jinsong, Wang, Yi, E-mail: yingwu2@126.com, E-mail: ywangwnlo@mail.hust.edu.cn, Wu, Ying, E-mail: yingwu2@126.com, E-mail: ywangwnlo@mail.hust.edu.cn, and School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei 430074. 2015. "Optical nonreciprocal transmission in an asymmetric silicon photonic crystal structure". United States. doi:10.1063/1.4936597.
@article{osti_22486142,
title = {Optical nonreciprocal transmission in an asymmetric silicon photonic crystal structure},
author = {Wu, Zheng and Chen, Juguang and Ji, Mengxi and Huang, Qingzhong and Xia, Jinsong and Wang, Yi, E-mail: yingwu2@126.com, E-mail: ywangwnlo@mail.hust.edu.cn and Wu, Ying, E-mail: yingwu2@126.com, E-mail: ywangwnlo@mail.hust.edu.cn and School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei 430074},
abstractNote = {An optical nonreciprocal transmission (ONT) is realized by employing the nonlinear effects in a compact asymmetric direct-coupled nanocavity-waveguide silicon photonic crystal structure with a high loaded quality factor (Q{sub L}) of 42 360 and large extinction ratio exceeding 30 dB. Applying a single step lithography and successive etching, the device can realize the ONT in an individual nanocavity, alleviating the requirement to accurately control the resonance of the cavities. A maximum nonreciprocal transmission ratio of 21.1 dB as well as a working bandwidth of 280 pm in the telecommunication band are obtained at a low input power of 76.7 μW. The calculated results by employing a nonlinear coupled-mode model are in good agreement with the experiment.},
doi = {10.1063/1.4936597},
journal = {Applied Physics Letters},
number = 22,
volume = 107,
place = {United States},
year = 2015,
month =
}
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