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Array of a dye-doped polymer-based microlaser with multiwavelength emission.

Kenichi Yamashita1, Hisao Yanagi, Kunishige Oe

  • 1Department of Electronics, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki Goshokaidocho, Sakyo-ku, Kyoto 606-8585, Japan. yamasita@kit.ac.jp

Optics Letters
|May 20, 2011
PubMed
Summary

Researchers developed a simple method to create polymer-based microlaser arrays using lithography. This technique fabricates plastic micropillars that function as vertical cavity lasers, enabling easy production of integrated laser cavities.

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Area of Science:

  • Optics and Photonics
  • Materials Science
  • Polymer Science

Background:

  • Microlaser arrays are crucial for integrated photonic circuits.
  • Fabricating polymer-based microlasers with controlled optical properties remains challenging.
  • Existing methods often lack scalability and ease of fabrication.

Purpose of the Study:

  • To report a convenient and scalable method for fabricating polymer-based microlaser arrays.
  • To demonstrate the lasing capabilities of the fabricated polymer micropillars.
  • To enable the easy production of integrated laser cavities with specific operational wavebands.

Main Methods:

  • Utilized a lithographic technique to fabricate laterally aligned plastic micropillars.
  • Employed an organic-dye-doped photopolymer as the laser medium.

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  • Fabricated micropillars equipped with an optical resonator acting as a vertical cavity laser element.

    • Main Results:

    • Successfully fabricated polymer-based microlaser arrays with plastic micropillars.
    • Observed Fabry-Perot-type lasing oscillation under optical pumping.
    • Demonstrated very fine emission spectra, confirming laser operation.

    Conclusions:

    • The developed lithographic method provides a convenient way to fabricate polymer microlaser arrays.
    • This technique allows for the easy integration of laser cavities with desired operation wavebands.
    • The polymer-based micropillars show promise for applications in integrated photonics.