Investigation of the temperature characteristics of an ammonia laser

An investigation was made of the temperature characteristics (200–400 °K) of an ammonia laser pumped optically with CO₂ laser radiation and utilizing both pure ammonia and an NH₃–N₂ mixture as active media. It was established that cooling of the active mixture resulted in a considerable increase in the laser efficiency in the case of pure ammonia, while the addition of nitrogen increased the operating temperature range in the case of the NH₃–N₂ laser. It was found that when the mixture was cooled additionally, the average output power increased in the pulse-periodic regime.