| 摘要 |
<p>1451839 Lasers UNITED AIRCRAFT CORP 23 Oct 1974 [26 Dec 1973] 45777/74 Heading H1C In a closed cycle laser system in which the active medium is flowing gas pumped by an electric discharge and the resonator is formed between two curved reflectors 102, 106, the closed cycle is provided with heat exchangers 92, 100 and a circulator 96 while the entire laser system is mounted on a framework, Figs. 1-4 (not shown), which includes anti-vibration means for minimizing distortion of the laser optical path caused by vibrations and pressure differentials within the system Typically the active medium is a mixture of Co 2 , He and N 2 . The optical path is a folded one Fig. 6 - and includes an oscillator path, between resonators 102, 106 and an amplifier path, subsequent to final reflector 110. Each of the four "legs" of the paths is pumped by two electric discharge tubes. Radiation is coupled out of the oscillator section by a mirror 108 containing a central aperture.</p> |
