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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 10,
  • Issue 9,
  • pp. 092301-092301
  • (2012)

Design of all-optical temporal dif ferentiator using a Moire fiber grating

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Abstract

We design and demonstrate an all-optical temporal differentiator based on a simple Moire fiber grating operated in reflection. The simulation results prove that a single Moire fiber grating with only one π-phase shifted point can act as the first-order temporal differentiator and that a Moire fiber grating incorporating two symmetrical π-phase shifted points can act as the second-order temporal differentiator. A practical Moire fiber grating is fabricated, thereby proving that such a grating can act as the first-order temporal differentiator. Our results verify the feasibility, flexibility, and accuracy of the proposed method.

© 2012 Chinese Optics Letters

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