Simple powerful tunable single-mode and mode-locked TEA CO\u3csub\u3e2\u3c/sub\u3e laser

摘要

A simple method for constructing a single longitudinal-mode CO2 laser that is tunable within individual rotational transitions is presented. Useful power levels, typically 0.3 J per pulse in a single-mode beam, are obtained from a single-stage device. Mode-locked output can also be obtained from the laser. In addition, design and construction of a local oscillator for making absolute in situ frequency measurements is described.