3b238e271973795cd627ca 20250604171931274 funda:funda fundamentalJournals@gmail.com WEB-FORM International Journal of Fundamental Physical Sciences IJFPS 22318186 12 2012 2 4 Laser and Optics Research School, Nuclear Science and Technology Research School, Atomic Energy Organization of Iran, Tehran, Iran M. Aram Z. Porhasannejad Laser and Optics Research School, Nuclear Science and Technology Research School, Atomic Energy Organization of Iran, Tehran, Iran E. Aghayare Laser and Optics Research School, Nuclear Science and Technology Research School, Atomic Energy Organization of Iran, Tehran, Iran S. Behrouzinia Laser and Optics Research School, Nuclear Science and Technology Research School, Atomic Energy Organization of Iran, Tehran, Iran The small-signal gain coefficient of a TEA CO2 laser has been measured through the implementation of a variable polarization intra-cavity loss element. Charging voltage dependence of the gain property of the laser has been investigated. The advantage of this method is that no probe laser system is required. The results have been agreed with experimental data obtained by conventional oscillator-amplifier method. 12 2012 58 60 10.14331/ijfps.2012.330038 https://www.fundamentaljournals.com/index.php/ijfps/article/view/39