
Checkerboard Gratings LCCG25-1064-36
LCCG25-1064-36Design Tools
The LBTek Checkerboard Grating (CG) is fabricated on an N-BK7 glass substrate using birefringent liquid crystal polymer (LCP) material, featuring a sandwich structure of front and rear glass substrates plus intermediate LCP functional film layer without mechanical housing, with a 1.5 mm single-sided chamfer.
The device utilizes liquid crystal molecules arranged in a checkerboard pattern with uniform orientation angles within each pixel cell and a phase difference between adjacent cells. Compared to three-piece cascaded structures, a single checkerboard grating accomplishes the same 2x2 uniform beam splitting function with easier integration.
Key Features
- Linearly polarized incident light, 2x2 uniform beam splitting
- Checkerboard phase structure with high uniformity and low zero-order ratio
- LCP / N-BK7 window material, no mechanical housing
- Operating wavelengths: 532, 633, 1064 nm, pixel size: 36x36 um
| Component Material | Liquid Crystal Polymer/N-BK7 Window Plate |
| Component size | Ø25.4×3.2 mm, single-side trimmed |
| Diffraction Efficiency | >98 % |
| Operating Wavelength | 1064 nm |
| Pixel Size | 36×36 μm |
| Retardance Accuracy | ±5 nm |
| Clear Aperture | 15×15 mm |
| Surface Quality (Scratch/Dig) | 60/40 |
| Zero-Order Suppression | <0.1 % |
| AR Coating | Ravg<0.5 %@700-1100 nm |
| Diffraction efficiency | >60 % |
| Operating Temperature | -20~80 ℃ |
| Beam splitting uniformity | >90 % |
Product Family: Checkerboard Gratings (3 variants)
| Product | SKU | Size | Clear Aperture | Operating Wavelength | |
|---|---|---|---|---|---|
| Checkerboard Gratings LCCG25-1064-36 Current |
LCCG25-1064-36
| — | — | — | |
| Checkerboard Gratings LCCG25-633-36 |
LCCG25-633-36
| — | — | — | View |
| Checkerboard Gratings LCCG25-532-36 |
LCCG25-532-36
| — | — | — | View |






