4.7 Article

Design of an Electro-Optic Modulator Based on a Silicon-Plasmonic Hybrid Phase Shifter

Journal

JOURNAL OF LIGHTWAVE TECHNOLOGY
Volume 31, Issue 8, Pages 1170-1177

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2013.2244848

Keywords

Electro-optic modulators; plasmonics; racetrack ring resonators; silicon photonics

Funding

  1. National Natural Science Foundation of China [61077052/61125504/61235007]
  2. MoE [20110073110012]
  3. Science and Technology Commission of Shanghai Municipality [11530700400]

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We propose a silicon-compatible plasmonic electro-optic modulator employing a silicon racetrack ring resonator coupled to a bus waveguide. A silicon-plasmonic hybrid phase shifter clad with electro-optic polymer is introduced to achieve high-speed performance and low energy consumption. Simulations show that the proposed modulator can achieve an extinction ratio of more than 15 dB at 1550-nm wavelength under a 1.2-V bias voltage. The misalignment tolerance and fabrication feasibility of the modulator are also discussed.

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