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Continuous-wave Nd-doped polymer lasers.

Christos Grivas1, Jing Yang, Mart B J Diemeer

  • 1Integrated Optical Micro Systems, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands. chg@orc.soton.ac.uk

Optics Letters
|June 16, 2010
PubMed
Summary
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Continuous-wave laser operation was achieved in neodymium-doped polymer waveguides at 1060.2 nm. Stable laser output demonstrates the potential of polymer gain media for integrated photonics.

Area of Science:

  • Optics and Photonics
  • Materials Science

Background:

  • Polymer waveguides offer a versatile platform for integrated photonics.
  • Neodymium (Nd) complexes are promising gain materials for solid-state lasers.

Purpose of the Study:

  • To demonstrate continuous-wave (cw) laser operation in Nd-doped polymer channel waveguides.
  • To investigate laser performance at different wavelengths and assess material durability.

Main Methods:

  • Fabrication of polymer channel waveguides doped with a Nd complex.
  • Characterization of laser performance at 1060.2 nm and 878 nm under optical pumping.
  • Evaluation of long-term operational stability.

Main Results:

  • Demonstrated cw laser operation at 1060.2 nm with an absorbed pump threshold of 50 mW.

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  • Achieved a maximum slope efficiency of 2.15% and output power of 0.98 mW at 1060.2 nm.
  • Observed lasing at 878 nm with a threshold of 74.5 mW and a slope efficiency of 0.35%.
  • Confirmed stable cw operation for over 2 hours, indicating good material durability.

    • Conclusions:

    • Polymer channel waveguides doped with Nd complexes are viable for integrated laser sources.
    • The demonstrated stable, long-term operation highlights the potential of these materials for practical photonic applications.