Development of 4Hz Medical Ruby Laser System with Double Cavities using Multi-Resonant Converter

다중 공진형 컨버터를 이용한 이중 캐비티 구조의 4Hz 의료용 루비레이저 시스템 개발

Lee, Jae-cheol;Zheng, Tao;Shengxu, Piao;Xu, Guo-Cheng;Kim, Hee-Je

  • Received : 2015.02.02
  • Accepted : 2015.06.11
  • Published : 2015.08.01


Various laser systems have been widely used in almost all industrial technologies because they have high energy density, directivity and coherence. Recently the clinical application is becoming wider in medical parts such as incurable disease, diagnosis and so on. Generally, ruby laser beam has the greatest efficacy for removing tattoos, freckle and other skin problem. But current medical ruby laser system has the maximum repetition rate of 2Hz and optical output beam energy of 1J. Many medical doctors really want to have a high repetition ruby laser system because that can reduce the operation time. We investigated a new ruby laser system with high repetition rate of 4Hz using double cavities. Furthermore, we develop a new power supply system adopting zero voltage switching(ZVS) to minimize switching loss by LLC resonant converter designed as 2kW class.


Ruby laser system;Double cavities;Multi-resonant converter;Zero voltage switching


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