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Numerical study of an optically pumped multimode D_2O laser
Sasaki, K.
Tsukishima, T.
open access
Copyright (1997) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
A numerical simulation of an optically pumped, multimode D_2O laser was carried out based on Lamb’s semiclassical laser theory. The numerical code includes the dispersion effect of the laser medium (D_2O gas in the cavity) in order to simulate the strength of mode coupling accurately. As a result, multiple-longitudinal-mode oscillations around the Raman resonance frequency were obtained that are roughly in agreement with experimental observations. Energy spectra of the D_2O laser emission obtained by the simulation were compared with those of the experimental results for various D_2O gas pressures. By including the dispersion effect, temporal variations of mode frequencies were calculated. In addition, resonant pumping was examined to obtain spectrally narrow outputs by tuning a frequency of a pump CO_2 laser pulse to the line center of the absorption band of D_2O molecules.
American Institute of Physics
1997-01-01
eng
journal article
VoR
http://hdl.handle.net/2237/7023
https://nagoya.repo.nii.ac.jp/records/5418
https://doi.org/10.1063/1.364111
0021-8979
Journal of Applied Physics
81
1
30
37
https://nagoya.repo.nii.ac.jp/record/5418/files/JApplPhys_81_30.pdf
application/pdf
182.4 kB
2018-02-19