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Measurement of the Radiative Quantum Efficiency of a Solid-State Laser Using Photoacoustic Spectroscopy

광음향 분광을 이용한 고체레이저의 방사양자효율 측정

  • Kim, Byung-Tai (Department of Laser & Optical Information Engineering, Cheongju University)
  • 김병태 (청주대학교 이공대학 레이저광정보공학과)
  • Received : 2015.02.25
  • Accepted : 2015.03.25
  • Published : 2015.04.25

Abstract

The radiative quantum efficiency of a solid-state laser was measured by photoacoustic spectroscopy with a PZT as the detector. The radiative quantum efficiency was about 58.3 % for a laser-diode pumped Nd:S-VAP laser under lasing conditions. The measurement of radiative quantum efficiency was presented as an effective method for the optimization of a laser resonator.

PZT를 검출기로 사용하는 광음향 분광 측정법으로 고체레이저의 방사양자효율을 측정하였다. 반도체레이저 여기 Nd:S-VAP 레이저에서 레이저가 발진하고 있을 때 약 58.3 %의 양자효율을 얻었다. 방사양자효율의 측정은 레이저 공진기의 최적화를 가능하게 하는 한 방법임을 제시하였다.

Keywords

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