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Chalcogenide optical parametric oscillator.

Raja Ahmad1, Martin Rochette

  • 1Department of Electrical and Computer Engineering, McGill University, Montreal (QC) H3A 2A7, Canada. raja.ahmad@mail.mcgill.ca

Optics Express
|April 27, 2012
PubMed
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Researchers developed the first optical parametric oscillator (OPO) using chalcogenide glass. This novel device, utilizing an As(2)Se(3) microwire, shows promise for mid-infrared applications.

Area of Science:

  • Photonics and Optical Engineering
  • Materials Science

Background:

  • Optical parametric oscillators (OPOs) are crucial for generating tunable laser light.
  • Chalcogenide glasses offer unique optical properties, particularly in the mid-infrared spectrum.
  • Microwire fabrication enables miniaturization and enhanced light-matter interaction.

Purpose of the Study:

  • To demonstrate the first optical parametric oscillator (OPO) utilizing chalcogenide glass.
  • To explore the potential of As(2)Se(3) microwires as gain media for OPOs.
  • To investigate the feasibility of mid-infrared OPO generation using telecommunication-wavelength pumps.

Main Methods:

  • Fabrication of an As(2)Se(3) chalcogenide microwire coated with a polymer.
  • Implementation of a doubly-resonant OPO configuration.

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  • Characterization of the OPO's spectral output and threshold performance.

    • Main Results:

    • The OPO simultaneously oscillated at Stokes and anti-Stokes wavelengths with a shift of >50 nm from the 1,552 nm pump.
    • A peak power threshold of 21.6 dBm was achieved.
    • A conversion efficiency exceeding 19% was demonstrated.

    Conclusions:

    • The study successfully demonstrates a novel OPO based on chalcogenide glass microwire technology.
    • The As(2)Se(3) microwire OPO is a promising platform for generating mid-infrared light.
    • This technology can leverage existing telecommunication optical sources for mid-IR applications.