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| Coad | 671703 | Type | 532nmPlate Beamsplitter | |
| Dimension(mm) | 25.4 x 6.35 | Wavelength(nm) | 532 | |
| Diameter | 25.4mm +0/-0.1mm | Thickness | 6.35mm +0/-0.1mm | |
| T/R Ratio | 80:20 | AOI(°) | 0 | |
| Substrate | UVFS Corning 7980 0F | Clear Aperture | >80% | |
| Parallelism | <10 arcsec | Surface Quality S1 | 10-5 SD | |
| Surface Quality S2 | - | Surface Flatness | L/8@632.8nm over 15mm CA | |
| GDD | - | Laser Damage Threshold | - | |
| Coating Type | IBS | Coating Specifications | S1:R=80%+ / -2%@532nm / S2:AR<0.1%@532nm |
The 532nm plano beam splitter (output coupler) is specially designed for high-power Nd:YAG second-harmonic laser systems to stably couple out part of the intracavity energy. It features a high-precision optical substrate with an ion beam sputtered (IBS) multilayer dielectric coating, offering extremely low absorption and scattering losses. Typical reflectivity is R=90% and transmittance T=10%, customizable upon request. The mirror ensures excellent optical performance under high-power conditions, with surface flatness better than λ/10@633nm, surface quality 20-10 S/D, and a laser damage threshold (LIDT) > 0.3J/cm²@532nm (10ns). Designed for normal incidence, it guarantees high wavefront accuracy and stable output power.
Key advantages include a balanced beam-splitting design with both high reflectivity and stability, extremely low absorption and scattering losses, excellent wavefront quality and phase consistency, as well as high environmental stability and long coating lifetime. The mirror maintains outstanding performance under both CW and pulsed high-power laser conditions, ensuring long-term system reliability. Typical applications include Nd:YAG 532 nm frequency-doubled laser outputs, high-power solid-state laser output couplers, regenerative amplifier output modules, laser power control systems, and precision laser experimental platforms. It is an ideal component for achieving stable energy output and superior beam quality in high-power laser resonators.Precautions:To ensure optimal performance, it is recommended to store and use the mirror in an environment of 25 °C with 40%–60% relative humidity. If the surface becomes contaminated, gently wipe it with 99% or higher isopropyl alcohol and lint-free optical tissue. Avoid using rough cloths, water, or abrasive cleaners, as these may damage the coating.
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