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Concurrent Passive Mode-Locked and Self-Q-Switched Operation in Laser Systems.

J Guo1,2, S T Cundiff1, J M Soto-Crespo3

  • 1Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA.

Physical Review Letters
|June 21, 2021
PubMed
Summary
This summary is machine-generated.

This study models concurrent passive mode-locking and self-Q-switching in lasers using a complex Ginzburg-Landau equation. Experimental results with a fiber ring laser closely match the model

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Area of Science:

  • Physics
  • Optics
  • Laser Technology

Background:

  • Mode-locked lasers generate short pulses.
  • Q-switched lasers produce high-energy pulses.
  • Concurrent operation presents unique challenges.

Purpose of the Study:

  • To model concurrent passive mode-locking and self-Q-switching.
  • To compare theoretical predictions with experimental data.

Main Methods:

  • Modeling using the complex cubic-quintic Ginzburg-Landau equation.
  • Experimental investigation using a passively mode-locked fiber ring laser.
  • Utilizing a waveguide array as a fast saturable absorber.

Main Results:

  • Numerical simulations accurately predict pulse shapes.
  • Experimental pulse shapes agree with theoretical models.
  • Observed periodic pulse trains match simulation outcomes.

Conclusions:

  • The complex cubic-quintic Ginzburg-Landau equation effectively models dual-mode laser operation.
  • Experimental validation confirms the model's predictive power.
  • This research advances understanding of advanced laser dynamics.