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Updated: Jun 22, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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2.7 W tunable orange-red GaInNAs semiconductor disk laser.

J Rautiainen1, A Härkönen, V-M Korpijärvi

  • 1Optoelectronics Research Centre, Tampere University of Technology, Korkeakoulunkatu 3, 33720 Tampere, Finland. jussi.rautiainen@tut.fi

Optics Express
|June 25, 2009
PubMed
Summary

We developed a Gallium Indium Nitride Arsenide (GaInNAs)/Gallium Arsenide (GaAs) semiconductor disk laser. This laser is frequency-doubled to generate visible orange-red light with high efficiency and good beam quality for optical fiber applications.

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Area of Science:

  • Semiconductor Lasers
  • Optoelectronics
  • Nonlinear Optics

Background:

  • Semiconductor disk lasers (SDLs) offer high power and good beam quality.
  • Frequency conversion of infrared lasers to visible wavelengths is crucial for various applications.
  • Gallium Indium Nitride Arsenide (GaInNAs) materials enable emission in the near-infrared region.

Purpose of the Study:

  • To demonstrate a frequency-doubled GaInNAs/GaAs semiconductor disk laser emitting visible radiation.
  • To characterize the output power, conversion efficiency, and beam quality of the visible emission.
  • To investigate the tunability of the laser system.

Main Methods:

  • Fabrication of a GaInNAs/GaAs semiconductor disk laser operating at 1224 nm.
  • Intracavity frequency doubling using a nonlinear crystal.

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  • Measurement of output power, optical-to-optical conversion efficiency, and coupling efficiency into single-mode optical fiber.
  • Wavelength tuning using a Fabry-Pérot glass etalon.

    • Main Results:

    • The laser system achieved an output power of 2.68 W in the visible region (orange-red).
    • An optical-to-optical conversion efficiency of 7.4% was obtained.
    • Coupling efficiency into single-mode optical fiber was high, ranging from 70-78%, indicating good beam quality.
    • The emission wavelength was tunable over an 8 nm spectral range.

    Conclusions:

    • A highly efficient frequency-doubled GaInNAs/GaAs semiconductor disk laser emitting visible light has been successfully demonstrated.
    • The system exhibits excellent beam quality suitable for fiber coupling.
    • This technology holds promise for applications requiring compact and efficient visible light sources.