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Multicolor diode-pumped upconversion fiber laser.

Ortwin Hellmig1, Stefan Salewski, Arnold Stark

  • 1Institut für Laser-Physik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany.

Optics Letters
|July 3, 2010
PubMed
Summary

Researchers developed a novel multicolor laser control method using variable air gap mirrors and composite resonators. This technique allows for flexible tuning of spectral output, demonstrating precise control over laser component power.

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Area of Science:

  • Laser Physics
  • Fiber Optics
  • Materials Science

Background:

  • Multicolor lasers are crucial for various applications requiring specific wavelengths.
  • Controlling individual spectral components in fiber lasers presents significant challenges.

Purpose of the Study:

  • To introduce a new method for controlling the power of individual spectral components in a multicolor laser.
  • To demonstrate arbitrary spectral composition of simultaneously emitted laser light.

Main Methods:

  • Utilized mirrors with variable air gaps for spectral component control.
  • Employed a composite resonator configuration within a Pr/Yb-ZBLAN fiber laser.
  • Investigated laser output at 492 nm, 520 nm, and 635 nm using 850 nm pump power.

Main Results:

  • Achieved arbitrary spectral composition of three simultaneously emitted laser components.
  • Demonstrated precise control over the power of individual spectral outputs.
  • Obtained a total laser output exceeding 10 mW with 100 mW pump power.

Conclusions:

  • The proposed method offers effective control over multicolor fiber laser output.
  • This technique enables flexible and tunable spectral generation for diverse applications.
  • The Pr/Yb-ZBLAN fiber laser system shows promise for advanced photonic applications.