Fiber laser process monitoring

Feb. 12, 2019
The HighLight SQD option for Coherent's HighLight fiber lasers comprises process sensors integrated directly into the company's fiber laser connectors.

The HighLight SQD option for Coherent's (Santa Clara, CA) HighLight fiber lasers comprises process sensors integrated directly into the company's fiber laser connectors to detect back-reflected laser power and visible spectrum process emissions. These signals, which are provided in either analog or digital CAN bus form (at a 2 kHz sampling rate), can be used to detect various key process events. For cutting, these include piercing end, cut interruption, and self-burning during piercing. For welding, the HighLight SQD can indicate incomplete penetration (due to insufficient power at workpiece, focal shift, or material changes), blow holes, contamination, gap detection for overlap joints, and other process instabilities.

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Industrial Laser Solutions Editors

We edited the content of this article, which was contributed by outside sources, to fit our style and substance requirements. (Editors Note: Industrial Laser Solutions has folded as a brand and is now part of Laser Focus World, effective in 2022.)

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