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  1. Home
  2. Indian Institute of Technology Madras
  3. Publication6
  4. FCA based two photon absorption and simulation of Si waveguide to device optical logic gates
 
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FCA based two photon absorption and simulation of Si waveguide to device optical logic gates

Date Issued
04-01-2017
Author(s)
Choudhury, Rudra Vaswata Roy
DOI
10.1109/WRAP.2015.7805957
Abstract
In the presented work, the concept of two photon absorption has been realised, through the solution of TPA equation. Considering realistic assumption, the free carrier absorption effect has also been included in the study. For comparative analysis, different silicon rib waveguide structures have been considered. The mode profile corresponding to each structure has been simulated using the Lumerical software tool. The power transfer characteristics for different waveguides have been plotted, which imparts knowledge on the effect of varying effect area of the waveguides and the FCA effect on the power curve. Finally the paper describes the design of optical logic gates, through the application of TPA. Optical logic gates are required to perform high speed optical signal processing, digitally. It forms a major area of research at present.
Subjects
  • Free carrier absorpti...

  • Lumerical

  • Non-linear optics

  • optical logic gate

  • Two photon absorption...

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