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290-fs pulses from a semiconductor disk laser.

Peter Klopp1, Florian Saas, Martin Zorn

  • 1Max-Born-Institute, Max-Born-Strasse 2A, D-12489 Berlin, Germany.

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|June 11, 2008
PubMed
Summary
This summary is machine-generated.

Diode-pumped semiconductor disk lasers generated transform-limited pulses as short as 290 fs. This all-semiconductor laser design, utilizing a graded-gap-barrier and saturable absorber mirror, eliminates the need for additional dispersion control elements.

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Area of Science:

  • Optics and Photonics
  • Semiconductor Lasers
  • Ultrafast Lasers

Background:

  • Semiconductor disk lasers are crucial for generating high-power laser output.
  • Mode-locking is essential for producing ultrashort laser pulses.
  • Dispersion management is often required to achieve transform-limited pulses.

Purpose of the Study:

  • To demonstrate the generation of transform-limited ultrashort pulses from a novel all-semiconductor laser.
  • To investigate the performance of a graded-gap-barrier design in a semiconductor disk laser.
  • To assess the effectiveness of a saturable absorber mirror for passive mode-locking without external dispersion control.

Main Methods:

  • Utilized a diode-pumped semiconductor disk laser architecture.
  • Incorporated a graded-gap-barrier design within the laser's gain section.
  • Employed a fast saturable absorber mirror for passive mode-locking.

Main Results:

  • Successfully generated transform-limited pulses with a duration as short as 290 femtoseconds (fs).
  • Achieved laser operation at a wavelength of 1036 nm.
  • Demonstrated that no additional internal or external dispersion control elements were necessary.

Conclusions:

  • The developed all-semiconductor laser design is capable of producing high-quality, ultrashort transform-limited pulses.
  • The graded-gap-barrier design and saturable absorber mirror effectively facilitate mode-locking and pulse compression.
  • This laser technology offers a compact and potentially cost-effective solution for ultrafast light generation.