The Transactions of the Korean Institute of Electrical Engineers C (대한전기학회논문지:전기물성ㆍ응용부문C)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on the Development of High Efficieny $CO_2$ Laser : Output Characteristics of Pulsed $CO_2$ Laser Using SMPS Method

고효율 $CO_2$ Laser 개발 연구 : SMPS 방식 펄스형 $CO_2$ Laser의 출력특성

  • Chung, Hyun-Ju (Dept.of Electric Engineering, Busan National University) ;
  • Lee, Dong-Hoon (Dept.of Electric Engineering, Busan National University) ;
  • Nam, Gyung-Hoon (Dept.of Electric Engineering, Busan National University) ;
  • Kim, Do-Wan (Dept.of Electric Engineering, Busan National University) ;
  • Chung, Young-Hwan (Dept.of Electric Engineering, Busan National University) ;
  • Lee, Yu-Soo (Dept.of Electric Engineering, Busan National University) ;
  • Kim, Hee-Je (Dept.of Electric Engineering, Busan National University) ;
  • Cho, Jung-Soo (Dept.of Electric Engineering, Busan National University)
  • Published : 1999.11.01
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Abstract

In this study, it is the purpose to develope a cheap and compact repetitively pulsed $CO_2$ laser with pulse repetition rate range of 180 Hz. We used a SCR switched power supply as a high voltage pulsed supply, which is cheap and simple comparing to others. PIC one-chip microprocessor was used for precise control of a laser power supply on the control part. And the laser cavity was fabricated as an axial and water cooled type. The laser performance characteristics as various parameters, such as pulse repetition rate and gas pressure have been investigated. The experiment was done under the condition of total pressure of $CO_2, N_2$ and He from 4 Torr to 16 Torr and pulse repetition rate from 4 Hz to 180 Hz. As a result, the maximum average output was about 19.6W at the total pressure of 12 Torr and the pulse repetition rate of 180Hz.

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References

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