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Self-organization in a multicore fiber laser array.

E J Bochove1, P K Cheo, G G King

  • 1Directed Energy Directorate, U.S. Air Force Research Laboratory, Kirtland Air Force Base, New Mexico 87117, USA. bochovee@plk.af.mil

Optics Letters
|July 30, 2003
PubMed
Summary
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We explain a fiber laser array

Area of Science:

  • Optics and Photonics
  • Laser Physics

Background:

  • Investigating the behavior of multi-core fiber laser arrays is crucial for developing advanced laser systems.
  • Previous studies have explored various aspects of laser array dynamics, but the spontaneous transition to specific array states requires further elucidation.

Purpose of the Study:

  • To elucidate the mechanism behind the spontaneous transition to the high-brightness, in-phase array state in a seven-core ytterbium-doped fiber laser array.
  • To demonstrate the control over array modes (in-phase and antiphase) through pump intensity modulation.

Main Methods:

  • Experimental observation of a seven-core ytterbium-doped fiber laser array.
  • Analysis of the spontaneous transition to the in-phase array state.
  • Modulation of pump intensity to influence array mode selection.

Related Experiment Videos

Main Results:

  • A spontaneous transition to a high-brightness, in-phase array state was observed and explained.
  • Nonlinear refraction was identified as the key mechanism driving this transition.
  • Both in-phase and antiphase array modes were successfully selected by controlling pump intensity.

Conclusions:

  • The spontaneous transition to the in-phase array state is governed by nonlinear refraction.
  • Pump intensity offers a viable method for controlling the operational mode of fiber laser arrays.
  • The observed phenomenon is robust and scalable, suggesting potential for practical applications.