Simple Q-switched Waveguide $CO_2$ Laser Using Polygon Mirror

회전 다면셩을 이용한 도파관 $CO_2$ 레이저의 Q-스위칭

  • 최종운 (한국표준과학연구원 레이저그룹) ;
  • 김용평 (한국표준과학연구원 레이저그룹) ;
  • 강응철 (국방과학연구소) ;
  • 김재기 (국방과학연구소)
  • Published : 1995.03.01


Q-switched Waveguide $CO_{2}$ laser using polygon mirror were constructed and their output characteristics were measured. Waveguide was made of the beryllium oxide tube of inner diameter of 2 mm, outer diameter of 20 mm, and length of 200 mm. A flat ZnSe output coupler of 80% reflectivity was placed on the 9 mm distance from the end of the waveguide. Convex lens was used to reduce the coupling loss between the polygon mirror and the waveguide. The polygon mirror was located behind of convex lens. With this condition, continuous output of the laser were measured as 1.2 W. In the Q-switched mode. pulse width 120 ns were measured with rotational speed 7,559 RPM. and peak power of up to 250 W. 250 W.



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