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Title: Enhanced four-wave mixing in graphene-silicon slow-light photonic crystal waveguides

We demonstrate the enhanced four-wave mixing of monolayer graphene on slow-light silicon photonic crystal waveguides. 200-μm interaction length, a four-wave mixing conversion efficiency of −23 dB is achieved in the graphene-silicon slow-light hybrid, with an enhanced 3-dB conversion bandwidth of about 17 nm. Our measurements match well with nonlinear coupled-mode theory simulations based on the measured waveguide dispersion, and provide an effective way for all-optical signal processing in chip-scale integrated optics.
Authors:
 [1] ;  [2] ; ; ;  [3] ; ; ;  [4] ; ; ;  [5] ;  [1] ;  [1] ;  [6]
  1. College of Electronic Information, Sichuan University, Chengdu 610064 (China)
  2. (United States)
  3. Optical Nanostructures Laboratory, Columbia University, New York, New York 10027 (United States)
  4. Mechanical Engineering, Columbia University, New York, New York 10027 (United States)
  5. The Institute of Microelectronics, Singapore 117685 (Singapore)
  6. (China)
Publication Date:
OSTI Identifier:
22311011
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CONVERSION; CRYSTALS; DISPERSIONS; EFFICIENCY; FREQUENCY MIXING; GRAPHENE; INTERACTIONS; NANOSTRUCTURES; REFRACTIVE INDEX; SILICON; SIMULATION; VISIBLE RADIATION; WAVEGUIDES