High frequency gas laser beam - improves uniformity of plasma discharge in channel and increases power output

摘要

A gas laser arrangement for a laser capilliary (1) having a varying cross-section along its length with high frequency source (9). The laser capilliary (1) is divided into several sections which are separated in an axial direction by electrodes (3, 19) which provide varying power outputs at high frequency. The high frequency performance is apportioned such that in each section the power output per unit length is approx the same. USE/ADVANTAGE - For increasing output power of gas lasers.