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Picosecond linear optical pulse shapers based on integrated waveguide Bragg gratings.

Luis M Rivas1, Michael J Strain, David Duchesne

  • 1Institut National de la Recherche Scientifique-Energie, Matériaux et Telécommunications (INRS-EMT), Montréal, Québec, Canada. rivas@emt.inrs.ca

Optics Letters
|November 4, 2008
PubMed
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We developed a new optical pulse-shaping method using integrated III-V Bragg gratings (BGs). This technique creates complex waveforms with picosecond precision for high-speed data generation.

Area of Science:

  • Photonics
  • Optical Engineering
  • Materials Science

Background:

  • High-speed optical signal processing is crucial for modern communication systems.
  • Existing pulse-shaping techniques face limitations in resolution and compactness.
  • Integrated photonic devices offer potential for miniaturized and efficient optical functions.

Purpose of the Study:

  • To demonstrate a general linear pulse-shaping technique using integrated III-V Bragg gratings (BGs).
  • To enable the synthesis of complex optical waveforms with picosecond resolution.
  • To develop compact, single-waveguide pulse shapers for high-speed applications.

Main Methods:

  • Fabrication of integrated optical pulse shapers based on III-V Bragg grating geometries.
  • Utilizing a compact single-waveguide design for waveform synthesis.

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  • Experimental testing of the pulse shapers as time-domain code generators.

    • Main Results:

    • Successful demonstration of a general linear pulse-shaping technique.
    • Achieved synthesis of complex waveforms with picosecond resolution.
    • Experimental validation of integrated BGs as time-domain code generators operating at 500 Gbits/s.

    Conclusions:

    • Integrated III-V Bragg gratings provide a versatile platform for advanced optical pulse shaping.
    • The demonstrated technique offers a compact and high-resolution solution for generating complex optical waveforms.
    • This technology has significant implications for high-speed optical communications and signal processing.