A novel non-intrusive sampling technique for CO2 laser on-line beam monitoring utilising a silicon mirror

Sparkes, M and Gross, M and O'Neill, W (2008) A novel non-intrusive sampling technique for CO2 laser on-line beam monitoring utilising a silicon mirror. Optics and Lasers in Engineering, 46. pp. 620-627. ISSN 0143-8166

Abstract

The measurement of high speed laser beam parameters during processing is a topic that has seen growing attention over the last few years as quality assurance places greater demand on the monitoring of the manufacturing process. The targets for any monitoring system is to be non-intrusive, low cost, simple to operate, high speed and capable of operation in process. A new ISO compliant system is presented based on the integration of an imaging plate and camera located behind a proprietary mirror sampling device. The general layout of the device is presented along with the thermal and optical performance of the sampling optic. Diagnostic performance of the system is compared with industry standard devices, demonstrating the high quality high speed data which has been generated using this system.

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