Simulation of a Diode Pumped Alkali Laser; a Three Level Numerical Approach

Abstract

This paper develops a three level model for a continuous wave diode pumped alkali laser by creating rate equations based on a three level system. Differential equations for intra-gain pump attenuation and intra-gain laser growth are developed in the fashion done by Rigrod. Using Mathematica 7.0, these di erential equations are solved numerically and a diode pumped alkali laser system is simulated.The results of the simulation are compared to previous experimental results and to previous computational results for similar systems. The absorption pro le for the three level numerical model is shown to have excellent agreement with previous absorption models. The lineshapes of the three level numerical model are found to be nearly identical to previous developments excepting those models assumptions. The three level numerical model provides results closer to experimental results than previous systems and provides results which observe effects not previously modeled, such as the effects of lasing on pump attenuation.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2010
Accession Number
ADA516382

Entities

People

  • Shawn W. Hackett

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Alkali Metals
  • Chemical Kinetics
  • Chemical Lasers
  • Chemical Oxygen Iodine Lasers
  • Department Of Defense
  • Differential Equations
  • Equations
  • Frequency
  • Ground State
  • Hyperfine Structure
  • Laser Diodes
  • Laser Mediums
  • Partial Pressure
  • Refraction
  • Three Dimensional
  • United States Government

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Computational Fluid Dynamics (CFD)
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers