BP7800-450nm Bandpass Filter | 7800nm CWL, 450nm FWHM, OD2+ Blocking

BP7800-450nm Bandpass Filter | 7800nm CWL, 450nm FWHM, OD2+ Blocking

The BP7800-450nm is a precision short-wave infrared bandpass filter engineered for high spectral performance in demanding industrial and analytical optical systems. As a core offering in OPTOStokes’ SWIR filters portfolio, it is designed with a center wavelength (CWL) of 7800nm ± 5nm and a full-width half-maximum (FWHM) of 450nm ± 5nm, delivering over 90 percent average transmission across the 7650nm to 7950nm passband. The filter provides deep out-of-band rejection across a broad spectral range from 200nm to 16000nm, with optical density greater than 2 to ensure robust signal isolation and minimize background noise in sensitive detection setups. Manufactured with precision thin-film coating technology and high-quality optical substrates, this bandpass filter maintains consistent spectral performance even under fluctuating temperature and humidity conditions, making it suitable for harsh industrial operating environments.

Technical Specifications

Applications

This 7800nm SWIR bandpass filter is primarily optimized for industrial infrared thermal imaging systems and non-contact infrared temperature measurement equipment, where precise spectral selection and reliable out-of-band noise rejection are critical to measurement accuracy. It is also well-suited for integration into industrial process monitoring systems, short-wave infrared spectroscopy instruments, laser beam conditioning setups, and custom optical sensing assemblies that require stable, repeatable SWIR wavelength control.

Customization & Service

OPTOStokes maintains an extensive in-stock selection of standard SWIR bandpass filters to support fast delivery for prototype testing and low-volume production needs, including the BP7800-450nm in the standard 25.4mm diameter, 1.0mm thickness format. For custom application requirements, we offer full customization services covering filter dimensions (circular, square, and custom irregular geometries), substrate materials, coating specifications, and mounting ring assemblies to match exact system integration needs. All our optical filters are manufactured to world-class precision standards, with strictly controlled lead times and comprehensive quality inspection to ensure consistent, reliable performance across every production batch.

Technical Support & Inquiry

We recognize that R&D engineers and procurement managers often face common challenges including extended lead times for custom optical components, limited technical guidance during component selection, and inconsistent product quality from third-party suppliers. At OPTOStokes, our in-house team of optical engineering experts provides dedicated technical support to help you evaluate and select the optimal filter solution for your specific application. Our flexible manufacturing capacity and large in-stock inventory enable fast turnaround for both standard off-the-shelf and custom configured orders. For product inquiries, custom specification requests, or volume pricing details, please contact our sales team at sales@optofilters.com or submit a direct inquiry through our website for a prompt, detailed response.