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Diode-pumped Pr:BaY2F8 continuous-wave orange laser.

David Pabœuf1, Oussama Mhibik, Fabien Bretenaker

  • 1Laboratoire Aimé Cotton, CNRS-Université Paris Sud 11, 91405 Orsay Cedex, France.

Optics Letters
|January 26, 2011
PubMed
Summary

We achieved continuous orange laser emission at 607 nm using a Pr:BaY(2)F(8) crystal and a blue laser diode. This demonstrates a novel approach for generating specific wavelengths with a maximum output power of 78 mW.

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Area of Science:

  • Laser physics
  • Materials science
  • Optoelectronics

Background:

  • Rare-earth doped fluoride crystals are promising laser gain media.
  • Praseodymium (Pr)-doped materials offer potential for visible laser emission.
  • Efficient pumping schemes are crucial for developing compact visible lasers.

Purpose of the Study:

  • To demonstrate continuous wave (CW) laser emission from a Pr:BaY(2)F(8) (Pr:BYF) crystal.
  • To investigate the performance of a Pr:BYF laser pumped by a blue GaN laser diode.
  • To characterize the output power and beam quality of the orange laser emission.

Main Methods:

  • Utilized a Pr:BaY(2)F(8) crystal as the gain medium.
  • Employed a blue GaN laser diode as the pump source.

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  • Measured the output power and analyzed the beam characteristics of the generated laser emission.

    • Main Results:

    • Achieved continuous wave laser emission at 607 nm in the orange spectrum.
    • Obtained a maximal output power of 78 mW.
    • Observed a quasi-single transverse mode beam.
    • Identified and evidenced the effect of reabsorption losses at the laser wavelength.

    Conclusions:

    • Pr:BaY(2)F(8) crystals are suitable for generating orange laser emission when pumped by blue laser diodes.
    • The developed laser system provides a compact and efficient source for 607 nm radiation.
    • Understanding reabsorption losses is important for optimizing the performance of Pr:BYF lasers.