13VB7100, Development of 6inch RE:YAG Single Crystal for Industial and Medical High Power Solid State Laser,
Ju Jung Jin
Abstract
본 발명은 형광 수명 측정 장치에 관한 것으로, 본 발명의 일 실시예에 따른 형광 수명 측정 장치는, 서로 다른 파장의 펌프광을 출력하는 복수 개의 펌프 광원; 상기 복수 개의 펌프 광원에서 출력되는 펌프광을 결합하여, 제1 다중모드 광섬유(MultiMode Fiber, MMF)로 출력하는 펌프광 결합기; 상기 펌프광 결합기로부터 입력 받은 펌프광을 전달하는 제1 다중모드 광섬유; 상기 제1 다중모드 광섬유로부터 전달받은 펌프광은 투과하고, 상기 제1 다중모드 광섬유로 입력되는 광은 차단하는 광 아이솔레이터; 상기 광 아이솔레이터를 투과한 펌프광은 투과하고, 시료에서 발생한 형광은 반사하는 파장선택 반사필터; 상기 파장선택 반사필터를 투과한 펌프광을 상기 시료로 전달하고, 상기 시료에서 발생한 형광을 상기 파장선택 반사필터로 전달하는 제2 다중모드 광섬유; 상기 파장선택 반사 필터에서 반사되는 형광을 전달하는 제3 다중모드 광섬유; 상기 제3 다중모드 광섬유로부터 전달받은 형광에서 펌프광 파장을 흡수하고, 남은 형광을 통과시키는 하는 차단 필터(cut-off filter); 및 상기 차단 필터를 통과한 형광을 전기 신호로 변환하는 포토다이오드(photodiode)를 포함하는 것을 특징으로 한다.
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