| Title |
A Study on the Development of High Efficieny CO_2 Laser : Output Characteristics of Pulsed CO_2 Laser Using SMPS Method |
| Authors |
정현주(Chung, Hyun-Ju) ; 이동훈(Lee, Dong-Hoon) ; 남경훈(Nam, Gyung-Hoon) ; 김도완(Kim, Do-Wan) ; 정영환(Chung, Young-Hwan) ; 이유수(Lee, Yu-Soo) ; 김희제(Kim, Hee-Je) ; 조정수(Cho, Jung-Soo) |
| Keywords |
Pulsed CO_2 laser ; Pulse transformer ; Pulse repetition rate ; PIC one-chip microprocessor |
| 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. |