BP3400nm Bandpass Filter | CWL 3400nm±30nm, FWHM 120±20nm, 0.5mm
The OPTOStokes BP3400nm is a high-precision bandpass filter fabricated from premium single-crystal silicon, optimized for mid-infrared hydrocarbon gas detection applications. It provides transmission greater than 80 percent at the target band, with a center wavelength of 3400nm ±30nm and a full width at half maximum of 120±20nm. Designed for 0 degree angle of incidence, this ultra-thin 0.5mm filter delivers reliable high OD blocking across the 400–11000nm range, ensuring clean signal isolation for demanding industrial gas analysis systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | 3400nm-120nm |
| Substrate Material | Single-crystal silicon |
| Center Wavelength (CWL) | 3400nm ±30nm (transmission greater than 80 percent) |
| Full Width at Half Maximum (FWHM) | 120±20nm |
| Blocking Range & Optical Density | 400–11000nm, optical density greater than 2 |
| Angle of Incidence (AOI) | 0 degree |
| Substrate Thickness | 0.5mm |
| Surface Quality | 60/40 |
Applications
This high-performance IR filters is specifically designed for applications requiring precise spectral selection at 3400nm, which corresponds to the characteristic absorption peak of C-H bonds in hydrocarbon molecules. Its exceptional performance makes it ideal for:
Hydrocarbon gas detection and concentration measurement
Petrochemical industry leak monitoring and safety systems
Natural gas pipeline inspection and distribution monitoring
Industrial process control and emissions monitoring
Environmental air quality analysis and compliance testing
Mid-infrared spectroscopic analysis instruments
Customization & Service
OPTOStokes offers comprehensive custom optical filter solutions to meet your exact system requirements. We manufacture 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
Technical teams often face critical challenges: long lead times for custom infrared components, inconsistent spectral performance, and lack of specialized technical support. These issues can delay project milestones and increase operational costs. At OPTOStokes, we solve these problems with our extensive ready-to-ship inventory, flexible manufacturing capabilities, 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 [email protected] or submit an inquiry through our website today.
