Which risk increases when a high humidity environment compromises the Zinc Selenide (ZnSe) lens in a CO2 laser cutting system?

💡 Explanation

Catastrophic thermal runaway inside resonant system occurs because moisture absorbed by the ZnSe lens leads to increased absorption of the 10.6 μm laser wavelength, causing rapid, uncontrolled heating; therefore lens cracks rather than beam effects or mode anomalies.

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