Compact TEA CO₂ Laser for a SMM Laser Pumping II Analysis of an Injection Locked TEA CO₂ Laser

Abstract

Requirements for a TEA CO₂ laser-pumped submillimeter (SMM) laser system, for the collective scattering measurement of a Tokamak ion temperature, is briefly discussed. It is shown that the TEA CO₂ laser has (i) to have a power in excess of 1 GW, (ii) to operate on a sigle mode (band-widthΔν_??_50 MHz) with some tunability, (iii) to have a pulse length in excess of several hundred nanoseconds, and (iv) to be compact to be acceptable as a diagnostic tool. Subsequently, it is shown, based on a rate equation model, that a TEA CO₂ laser, injection-locked by a single-mode TEA CO₂ laser, has the above requirements.