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Updated: May 8, 2026

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
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Unidirectional III-V microdisk lasers heterogeneously integrated on SOI.

P Mechet1, S Verstuyft, T de Vries

  • 1imec - Ghent University, Photonics Research Group - Department of Information Technology (INTEC), Sint-Pietersnieuwstraat 41, 9000 Ghent, Belgium. Pauline.Mechet@intec.ugent.be

Optics Express
|August 14, 2013
PubMed
Summary
This summary is machine-generated.

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We achieved unidirectional bistability in microdisk lasers using a passive distributed Bragg reflector (DBR). This innovation enables single-mode, continuous-wave operation at room temperature for improved laser performance.

Area of Science:

  • Photonics and optical engineering
  • Semiconductor device physics

Background:

  • Microdisk lasers offer compact, single-mode light sources.
  • Achieving unidirectional emission is crucial for integrated photonic circuits.

Purpose of the Study:

  • To demonstrate unidirectional bistability in electrically pumped microdisk lasers.
  • To integrate these lasers heterogeneously on Silicon-on-Insulator (SOI) platforms.

Main Methods:

  • Heterogeneous integration of microdisk lasers on SOI.
  • Incorporation of a passive distributed Bragg reflector (DBR) coupled to the microdisk.
  • Electrical pumping for continuous-wave (CW) operation.

Main Results:

  • Demonstration of unidirectional bistability in microdisk lasers.

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Last Updated: May 8, 2026

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  • Single-mode operation achieved in the continuous wave regime at room temperature.
  • Experimental and simulation validation of unidirectional laser emission.

    • Conclusions:

    • The integration of a passive DBR successfully induces unidirectional gain.
    • This method provides a viable route for unidirectional emission in integrated microdisk lasers.
    • The demonstrated technology is suitable for advanced photonic integrated circuits.