Nd:YAG Harmonic Beamsplitter, 25.4 mm, 354.7 nm Refl., 1064 nm Trans.

The 10QM20HB.31 High-Energy Nd:YAG Harmonic Beamsplitter is 1.0 in. (25.4 mm) in diameter with high reflectivity at 354.7 nm, and high transmission at 1064 nm. The back surface is AR coated for 532 and 1064 nm. Our harmonic beam splitters are designed to separate Nd:YAG laser harmonics after frequency multiplication. These 25.4 mm diameter optics are precision polished select grade fused silica coated with hard refractory multilayers for high damage threshold. Harmonic beamsplitters are sometimes called Dichroic Filters or Beam Combiners.
Specifications
- TypeBeamsplitter
- Diameter25.4 mm
- Reflectance Band354.7 nm
- MaterialUV Grade Fused Silica
- Coating CodeHB.31
- Transmittance Band1064 nm
- Antireflection CoatingV-coat AR, R <0.25% at transmittance band
- Angle of Incidence45°
- ReflectionRavg > 99.5%
- TransmissionTavg>95%
- Wavefront Distortion≤
/4 at 632.8 nm over the clear aperture - Damage Threshold5.0 MW/cm2 CW, 5.0 J/cm2 with 0.1-100 nsec pulses @ 1064 nm, typical
- Surface Flatnessλ/10 at 632.8 nm over the clear aperture
- Surface Quality10-5 scratch-dig
- Diameter Tolerance+0/-0.25 mm
- Thickness6.35 mm
- Thickness Tolerance±0.5 mm
- Wedge≤3 arc min
- Clear Aperture> central 80% of diameter
- Chamfers0.25-0.76 mm face width
- Chamfers Angle Tolerance45° ±15°
- DurabilityMIL-C-675C, moderate abrasion million cycles
- Cleaning
Resources & Downloads
3D Product Models
Other
10QM20HB.31 RoHS Certificate(266.2 kB, PDF) 10QM20HB.31_ROHS2-2021.pdf(279.5 kB, PDF)
2D Product Drawings
BS-1-DWG-3 arc-S(72 kB, PDF)
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