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Dammann Gratings DG25-1704-1064
DG25-1704-1064$1,040.18
In Stock· Ships in 5.0 weeks
Key Specifications
Wavelength
1064.0nm
Reflectance
0.5%
Transmittance
700.0%
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The LBTek Dammann Grating (DG) is fabricated based on liquid crystal polymer birefringent material and N-BK7 glass substrate, presenting a sandwich structure of front and rear glass substrates plus LCP functional layer with no housing and a single cutting edge.
The device features a binary periodic variation of liquid crystal molecule orientations with half-wave retardation across the entire plane. The grating surface consists of position-encoded binary phase structures capable of splitting laser beams into multiple equal-intensity beams, offering advantages in flat-plate design, high diffraction efficiency, and superior beam-splitting ratios.
Key Features
- Linearly polarized light incidence enabling one-dimensional uniform beam splitting
- Planar structure with high splitting ratio and high diffraction efficiency
- Operating wavelengths: 532 nm and 1064 nm
- Splitting mode: 1x7 with standard grating period of 90 um
- Liquid crystal polymer / N-BK7 sandwich flat-plate structure
| Reflectance | 0.5% |
| Transmittance | 700.0% |
| Element Material | Liquid Crystal Polymer/N-BK7 Window Plate |
| Element Dimensions | Ø25.4x3.2 mm, D1.5 mmTrimmed Edge |
| Clear Aperture | 15x15 mm |
| Operating Wavelength | 1064 nm |
| Surface Quality | 60/40 |
| Transmittance | 700-1100 nm |
| Diffraction Efficiency | >75 % |
| Reflectance | Ravg<0.5 % (0 °incidence) |
| Conversion Efficiency | >98 % |
| Delay Accuracy & Uniformity | ±5 nm |
| Operating Temperature | -20~80 deg C |
| Lead Time | 5.0 weeks |
CAD Drawing
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Curve 1
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Curve - Uniformity
Product Family: Dammann Gratings (2 variants)
| Product | SKU | Size | Clear Aperture | Operating Wavelength | |
|---|---|---|---|---|---|
| Dammann Gratings DG25-1704-1064 Current |
DG25-1704-1064
| — | — | — | |
| Dammann Gratings DG25-1702-532 |
DG25-1702-532
| — | — | — | View |