BP1400nm Bandpass Filter | CWL 1400nm±5nm, FWHM 60±5nm, 1.0mm
The OPTOStokes BP1400nm is a high-precision bandpass filter optimized for near-infrared moisture non-destructive quantitative detection applications. Engineered with advanced ion-assisted thin film coating technology, it provides high transmission greater than 85 percent across the 1385–1415nm range, with a full width at half maximum of 60±5nm. This 1.0mm thick filter delivers exceptional high OD blocking across the entire 400–1630nm spectrum with transmission less than 1 percent, ensuring clean NIR signal isolation for high-accuracy moisture detection systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Center Wavelength (CWL) | 1400nm ±5nm |
| Transmission Band | 1385–1415nm, transmission greater than 85 percent |
| Full Width at Half Maximum (FWHM) | 60±5nm |
| Blocking Range | 400–1630nm, transmission less than 1 percent |
| Substrate Thickness | 1.0mm |
Applications
This high-performance near-infrared bandpass filter is specifically engineered for applications requiring precise spectral selection at 1400nm, a critical absorption wavelength for water molecules in non-destructive quantitative analysis. Its exceptional optical performance makes it ideal for:
Moisture non-destructive quantitative detection systems
Food and agricultural product moisture content testing
Pharmaceutical raw material moisture analysis
Wood and building material moisture measurement
Chemical and industrial process moisture monitoring
On-line production quality control inspection systems
Customization & Service
OPTOStokes offers comprehensive custom optical filter solutions to meet your exact moisture detection requirements. We manufacture NIR bandpass filters in standard circular, square and custom irregular shapes, with optional precision mounting rings for seamless integration into your optical assemblies. Our extensive in-stock inventory ensures fast shipping for standard specifications, while our advanced manufacturing capabilities deliver custom orders with reliable, predictable lead times. All products are manufactured to world-class quality standards and undergo rigorous 100% optical testing before shipment.
Pain Points & CTA
Moisture detection teams often face critical challenges: inconsistent NIR transmission accuracy, insufficient broadband blocking performance, and long lead times for custom near-infrared components. These issues can reduce measurement precision, increase calibration frequency, and delay production schedules. At OPTOStokes, we solve these problems with our extensive ready-to-ship inventory, proprietary NIR coating technology, and dedicated technical support team. Whether you need a single prototype for testing or high-volume production runs, we deliver precision optical components on time, every time.
For detailed datasheets, volume pricing, or to discuss your specific filter requirements, contact our expert team at sales@optofilters.com or submit an inquiry through our website today.
