
Thin Film Linear Polarizers FLP51-NIR-CRM
FLP51-NIR-CRMDesign Tools
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Thin film linear polarizer in CRM-2A rotation mount, 700–1700 nm, Ø50.8 mm clear aperture
Overview
The LBTEK Thin Film Linear Polarizer (Film Linear Polarizer, FLP) consists of front and rear N-BK7 glass substrates with a linear polarizing film sandwiched in between, offering two mounting options: retaining ring mount and rotation mirror mount. Across the entire component surface, the transmission axis direction remains consistent, making it suitable for generating linearly polarized light beams with a specific polarization direction while ensuring a high extinction ratio and a wide incidence angle range. LBTEK offers thin film linear polarizers with operating wavelengths of 400–700 nm and 700–1700 nm, and also supports flexible customization of parameter specifications to meet user requirements.
Key Features
- Linear polarizing film / N-BK7 window in sandwich flat structure with mechanical housings
- Uniform transmission direction within the component plane
- Capable of generating linearly polarized light beams with specific polarization directions
- High extinction ratio (>5000:1 at peak range), wide incidence angle range of ±20°
- Operating wavelength: 400–700 nm (VIS) and 700–1700 nm (NIR)
- Custom services for parameter specifications available
Applications
- Laser beam polarization control and analysis
- Optical isolation and attenuation (crossed-polarizer configuration)
- Polarization microscopy and imaging systems
- Spectroscopy and interferometry setups
- Quality inspection and materials characterization
| Polarization Type | Linear |
| Film Type | Thin Film |
| Substrate | N-BK7 |
| Wavelength Range | 700 nm-1700 nm |
| Extinction Ratio | >1000:1@600-1500 nm; >3000:1@1500-2000 nm |
| Clear Aperture | Ø45 mm |
| Dimensions | 76.0 mm×76.0 mm×20.4 mm |
| Coating | Ravg<1.0 %@700-1700 nm |
| Surface Quality | 60/40 |
| Angle of Incidence | ±20° |
| AOI Tolerance | ±1° |
| Damage Threshold | 0.5 J/cm^2@1064 nm, 5 ns, 10 Hz, Ø0.45 μm (Single Pulse) |
| Operating Temperature | 0-60 deg C |
| Housing Model | CRM-2A |
Product Family: Thin Film Linear Polarizers (14 variants)
| Product | SKU | Size | Clear Aperture | Operating Wavelength | |
|---|---|---|---|---|---|
| Thin Film Linear Polarizers FLP-VIS-50 |
FLP-VIS-50
| 50×50 mm | — | 400 nm-700 nm | View |
| Thin Film Linear Polarizers FLP-VIS-100 |
FLP-VIS-100
| 100×100 mm | — | 400 nm-700 nm | View |
| Thin Film Linear Polarizers FLP51-NIR-CRM Current |
FLP51-NIR-CRM
| 76.0 mm×76.0 mm×20.4 mm | Ø45 mm | 700 nm-1700 nm | |
| Thin Film Linear Polarizers FLP25-NIR-CRM |
FLP25-NIR-CRM
| 42.0 mm×42.0 mm×15.9 mm | Ø21.5 mm | 700 nm-1700 nm | View |
| Thin Film Linear Polarizers FLP13-NIR-CRM |
FLP13-NIR-CRM
| 25.0 mm×25.0 mm×11.0 mm | Ø10 mm | 700 nm-1700 nm | View |
| Thin Film Linear Polarizers FLP51-VIS-CRM |
FLP51-VIS-CRM
| 76.0 mm×76.0 mm×20.4 mm | Ø45 mm | 400 nm-700 nm | View |
| Thin Film Linear Polarizers FLP25-VIS-CRM |
FLP25-VIS-CRM
| 42.0 mm×42.0 mm×15.9 mm | Ø21.5 mm | 400 nm-700 nm | View |
| Thin Film Linear Polarizers FLP13-VIS-CRM |
FLP13-VIS-CRM
| 25.0 mm×25.0 mm×11.0 mm | Ø10 mm | 400 nm-700 nm | View |
| Thin Film Linear Polarizers FLP13-NIR-M |
FLP13-NIR-M
| Ø12.7 mm | Ø10 mm | 700 nm-1700 nm | View |
| Thin Film Linear Polarizers FLP25-NIR-M |
FLP25-NIR-M
| Ø25.4 mm | Ø21.5 mm | 700 nm-1700 nm | View |
| Thin Film Linear Polarizers FLP51-NIR-M |
FLP51-NIR-M
| Ø50.8 mm | Ø45 mm | 700 nm-1700 nm | View |
| Thin Film Linear Polarizers FLP13-VIS-M |
FLP13-VIS-M
| Ø12.7 mm | Ø10 mm | 400 nm-700 nm | View |
| Thin Film Linear Polarizers FLP25-VIS-M |
FLP25-VIS-M
| Ø25.4 mm | Ø21.5 mm | 400 nm-700 nm | View |
| Thin Film Linear Polarizers FLP51-VIS-M |
FLP51-VIS-M
| Ø50.8 mm | Ø45 mm | 400 nm-700 nm | View |






