Beamsplitters for laser process monitoring
In laser material processing applications, monitoring the main beam in real time is often essential for precise control of the process.
For high-power applications, polarisation-independent dielectric beamsplitters are employed to reflect a small portion of the input power to beam diagnostic equipment while allowing the main beam to pass through.
LASER COMPONENTS manufactures dielectric beamsplitters using plasma ion-assisted deposition (PIAD) and ion beam sputtering (IBS). These ultra-dense coatings are free from moisture and are not affected by temperature changes. Available in the wavelength range of 248nm to 3000nm and designed for angles of incidence (AOI) of 0° or 45°, the beamsplitters offer maximum reflectivity, a high laser-induced damage threshold (LiDT), and minimal thermal drift.
The online coating process monitoring enables customisation of transmission/reflection ranges, wavelengths, and AOI to suit specific applications.
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