Computer Physics Communications Program Library

Programs in Physics & Physical Chemistry

PROGRAM SUMMARY

Manuscript Title: TEA CO₂ LASER SIMULATOR: A SOFTWARE TOOL TO PREDICT THE OUTPUT PULSE CHARACTERISTICS OF TEA CO₂ LASER
Authors: B.Abdul Ghani
Program title: TEA _CO2
Catalogue identifier: ADVW
Journal reference: Comput. Phys. Commun. 171(2005)93
Programming language: Delphi 6.0.
Computer: P.IV DELL PC;.
Operating system: MS-Windows 9x, 2000, XP.
Keywords: Software tool, Simulation, Carbon Dioxide, Gas laser.
PACS: 42.55.Lt.
Classification: 15.
Nature of problem: "TEA CO₂ Laser Simulator" is a program that predicts the behavior of the laser output pulse by studying the effect of the physical and geometrical input parameters on the characteristics of the output laser pulse. The laser active medium consists of a CO₂-N₂-He gas mixture.
Solution method: Six-temperature model, for the dynamics emission of TEA CO₂ laser, has been adapted in order to predict the parameters of laser output pulses. A simulation of the laser electrical pumping was carried out using two approaches; empirical function equation [1] and differential equation [2].
Restrictions: Using a very small integration step might cause the program to stop running due to the huge number of calculating points and to a small paging file size of the MS-Windows virtual memory. In such case, it is recommended to enlarge the paging file size to the appropriate size, or to use a bigger value of integration step.
Running time: The program's running time mainly depends on both integration interval and step; for a 4 μs period of time and 0.001 μs integration step(defaults values used in the program), the running time will be about 4 seconds.
References:
[1]	K. Smith and R.M. Thompson (N.Y. Plenum Press, 1978) p.25.
[2]	M. Soukieh, B. Abdul Ghani and M. Hammadi, Optics & Laser Technology 30(1998) 451