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Emission properties of electrically pumped triangular shaped microlasers.

Martina Hentschel1, Qi Jie Wang, Changling Yan

  • 1Max-Planck Institut für Physik komplexer Systeme, 01187 Dresden, Germany. martina@pks.mpg.de

Optics Express
|August 20, 2010
PubMed
Summary

Electrically pumped microlasers with rounded corners do not show directional emission. Resonator geometry adjustments can fine-tune broad emission for optical device applications.

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Area of Science:

  • Optics and Photonics
  • Semiconductor Devices

Background:

  • Microlasers are fundamental components in integrated photonics.
  • Understanding emission properties is crucial for device optimization.

Purpose of the Study:

  • To investigate the emission characteristics of electrically pumped, rounded-corner, triangular microlasers.
  • To compare experimental findings with ray simulation results.

Main Methods:

  • Fabrication and electrical pumping of triangular microlasers with dimensions around 100 micrometers.
  • Experimental measurement of emission properties.
  • Ray tracing simulations to model light propagation and emission.

Main Results:

  • No directional emission was observed for the studied microlaser dimensions.

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  • Experimental results align with predictions from ray simulations.
  • Broad emission spectra were observed, tunable via resonator geometry.

    • Conclusions:

    • Triangular microlasers with rounded corners and dimensions around 100 micrometers exhibit non-directional emission.
    • Resonator geometry offers a method for tuning emission characteristics.
    • These findings are relevant for the development of novel optical devices.