Journal of the Optical Society of Korea

  • 제18권5호
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  • Pages.589-593
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  • 2014
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  • 1226-4776(pISSN)
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  • 2093-6885(eISSN)
한국광학회 (Optical Society of Korea)
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Design and Performance Analysis of a Multi Wavelength Terahertz Modulator Based on Triple-Lattice Photonic Crystals

  • Ji, Ke (Nanjing University of Posts and Telecommunications) ;
  • Chen, Heming (Nanjing University of Posts and Telecommunications) ;
  • Zhou, Wen (Nanjing University of Posts and Telecommunications)
  • 투고 : 2014.07.11
  • 심사 : 2014.09.16
  • 발행 : 2014.10.25
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초록

Terahertz (THz) communication has important applications in high-speed and ultra broadband wireless access networks. The THz modulator is one of the key devices in a THz communications system. Wavelength division multiplexing (WDM) can expand the capacity of THz communications systems, so research on multi wavelength THz modulators has significant value. By combining photonic-crystal and THz technology, a novel type of multi wavelength THz modulator based on a triple-lattice photonic crystal is proposed in this paper. Compared to a compound-lattice photonic crystal, a triple-lattice photonic crystal has a larger gap width of 0.196. Simulation results show that six beams of THz waves can be modulated simultaneously with high performance. This modulator's extinction ratio is as large as 34.25 dB, its insertion loss is as low as 0.147 dB, and its modulation rate is 2.35 GHz.

키워드

참고문헌

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피인용 문헌

  1. Vertically magnetic-controlled THz modulator based on 2-D magnetized plasma photonic crystal vol.23, 2017, https://doi.org/10.1016/j.photonics.2016.11.007