High-Damage-Threshold Laser Coating
High-damage-threshold laser coatings serve crystal resonators, laser imaging, marking, drilling, engraving, hardening, cutting and welding. 觉芯Email customizes high-threshold optics across UV–visible–NIR. LBO, described as an orthorhombic point-group crystal, suits high-power second-harmonic generation and nonlinear optics. Referenced examples include multilength/broadband AR and355/532/1064nm triple-band AR for Nd:YAG, minimizing reflection, absorption and scatter while maximizing threshold. Broadband AR, especially bandwidth>2, needs many more layers than single-line AR; greater bandwidth increases fabrication difficulty. Bandwidth is defined as BWAR=λ₂/λ₁, with λ₂/ and λ₁ stated as the longest/shortest compliant wavelengths. Large-angle broadband mirrors offer multiple-wavelength/angle compatibility for laser beam transport; the source states they greatly reduce optical-layout flexibility. Triple-band mirrors provide high reflection at fundamental, doubled and tripled Nd:YAG wavelengths. Typical performance/curve references are retained in the description.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Substrate Material | Quartz, BK7, K9, Sapphire and Various Crystal Materials |
| Pattern and Dimensions [Customizable to Customer Requirements] | Customizable to Customer Requirements |
| Transmitted Wavefront [PV；λ=632.8 nm] | PV < λ/10(λ=632.8 nm) |
| Surface Quality [MIL-PRF-13830B] | Better Than 20/10 (MIL-PRF-13830B) |
| Laser Damage Threshold [10ns；10Hz] | >60J/cm² |
| Laser Damage Threshold [CW] | >500MW/cm² |
Datasheet
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