Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Astigmatically compensated cw Ti:Sapphire laser pumped by $Ar^+$ laser

비점수차가 보상된 $Ar^+$ 레이저로 펌핑하는 cw Ti:Sapphire 레이저

  • Yoon, Tai-Hyun (Laser Laboratory Korea Standards Research Institute) ;
  • Kim, Gyu-Ug (Laser Laboratory Korea Standards Research Institute) ;
  • Jo, Jae-Heung (Laser Laboratory Korea Standards Research Institute) ;
  • Won, Jong-Wook (Laser Laboratory Korea Standards Research Institute)
  • 윤태현 (레이저연구실 한국표준연구소) ;
  • 김규욱 (레이저연구실 한국표준연구소) ;
  • 조재흥 (레이저연구실 한국표준연구소) ;
  • 원종욱 (레이저연구실 한국표준연구소)
  • Published : 1990.07.05
Download PDF
⟨ Previous Next ⟩

Abstract

Room temperature cw operations of a standing wave and a unidirectional Ti:Sapphire laser pumped by a $Ar^+$ laser have been demonstrated in the same pumping cavity configuration. Laser emission at 790 nm was excited with all-line $Ar^+$ laser pump for both cavities. The maximum output power was found to be 600 mW in the standing wave cavity and 210 mW in the ring cavity. Values of (83 ${\pm}$ 10) % for the internal quantum efficiency and (3.0 ${\pm}$ 0.5) % for the round-trip cavity loss for standing wave cavity are obtained from the thresholds and slope efficiencies measured with 2.4 and 11.2 % optput couplers. The measured cavity-loss value at 790 nm gives a meterial figure of merit (FOM) to be 146. Unidirectional operation of the ring Ti:Sapphire laser will be discussed.

Keywords