Sales Engineer: Grace Gao
Email: grace@rsnv.cn
WhatsApp: +86 199 2997 5286
1. Dual-Wavelength Coating for Easy Alignment
This output coupler features a unique dual-wavelength coating: 85% transmission at 1064nm for optimal laser output, combined with 15% reflection at 650nm (visible red). This allows for easy visual alignment of the laser cavity using a visible pilot beam without compromising the performance at the lasing wavelength.
2. High-Performance Anti-Reflection Coating
The rear surface is coated with an AR coating achieving <0.2% reflection at 1064nm, minimizing Fresnel reflection losses and maximizing transmission efficiency. This ensures that the extracted laser beam maintains its full power and quality.
3. Premium Substrate Materials
Manufactured from K9 optical glass (cost-effective) or fused silica (high thermal stability), providing excellent thermal properties for demanding laser applications. Fused silica is specifically recommended for high-power CW lasers or environments with significant temperature fluctuations.
4. Technical Specifications
Parameter
Specification
Product Name
Laser Output Coupler / Output Coupler Mirror
Material
K9 Optical Glass / Fused Silica
Outer Diameter
Φ20.0 mm / Φ12.7 mm
Thickness
6.35 mm (typical)
Surface 1 Coating
Partially Reflective
Transmission @1064nm
T = 85% (typical)
Reflection @650nm
R = 15% (typical)
Surface 2 Coating
Anti-Reflection (AR)
Reflection @1064nm
R < 0.2% @ 1064nm, 0° AOI
Angle of Incidence (AOI)
0° ± 3°
Clear Aperture
> 85%
Surface Quality
40-20 Scratch-Dig
Surface Flatness
λ/8 @ 632.8 nm
Laser Damage Threshold
> 10 J/cm² @ 1064nm, 10 ns pulse
Parallelism
< 3 arcmin (180 arcsec)
5. Customizable Specifications
Available in standard diameters of Φ20 mm and Φ12.7 mm with full customization options for:
-
Size and thickness
-
Reflection/transmission ratios
-
Wavelength specifications (UV to IR)
-
Substrate material
Sales Engineer: Grace Gao
Email: grace@rsnv.cn
WhatsApp: +86 199 2997 5286
Request A quick Quote（WhatsApp/wechat:+86-19929975286）
