| 摘要 |
A method and means for stabilizing the difference in frequency between component frequency modes of a gas laser influenced by Zeeman splitting is presented, comprising an electronic servo control loop which drives a magnetic flux element (40) for tuning the frequency separation of the component frequency modes and a thermal element (36) for tuning the length of the lasing chamber. A beat signal (64) obtained from heterodyning the component modes of the laser beam is compared with a reference signal (68) to generate a control signal (74, 78) for driving the flux and thermal elements which determine the difference in frequency between the component frequency modes. |
