Abstract
Because of its high efficiency, low noise, high stability and ease in handling, the high-flowrate c-w CO/sub 2/ laser is the most promising among various high-power c-w CO/sub 2/ lasers for its industrial application in the future. In this type of laser, the laser gas circulates in a closed loop and therefore it offers several advantages: (1) the gas consumption is small, (2) storage of a large amount of gases is not needed which permits size reduction, and (3) low-power pump systems can be used. A cross gas flow c-w CO/sub 2/ laser with 1-m long medium was developed, and its operating characteristics, such as the dependency of the gas flowrate, pressure and gain on the gas temperature and discharge instability, were investigated. As a result, it was found that the lasing behavior is limited by the input limitation caused by discharge deterioration rather than high gas temperature. The discharge instability at low pressure differs from that at high pressure in that the latter is due to thermal instability of the positive column. The instability growth time duration was obtained from the threshold of the discharge instability. The maximum gain is 85 dB/m and the maximum output is 1250 Wmore » at the gas pressure 30 torr.« less
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
