BP6680 Bandpass Filter | CWL 6680nm, FWHM 90nm, 0.5mm Thickness

BP6680 Bandpass Filter | CWL 6680nm, FWHM 90nm, 0.5mm Thickness

OPTOStokes BP6680 bandpass filter delivers 6680nm CWL & OD2+ blocking. Ideal for hydrocarbon & VOC gas detection. In-stock & custom options. Contact us today.
Products Description

BP6680 Bandpass Filter | CWL 6680nm, FWHM 90nm, 0.5mm Thickness

The OPTOStokes BP6680 is a precision mid-infrared Bandpass Filters engineered for demanding optical detection and analytical systems. With a center wavelength of 6680nm and a 90nm passband, it delivers consistent high transmission within the target spectral range while providing reliable out-of-band blocking across a broad 400nm to 11000nm spectrum. Its 0.5mm thin substrate profile supports integration into compact optical assemblies and space-constrained instrument designs, making it suitable for both benchtop and portable detection equipment.

Technical Specifications

BP6680 Bandpass Filter Technical Specifications
ParameterSpecification
Center Wavelength (CWL)6680 ±3nm @ Transmission > 80%
Full Width at Half Maximum (FWHM)90nm ±20nm
Blocking Range & Optical Density400 – 11000nm @ Optical Density > 2
Substrate Thickness0.5mm

Applications

This 6680nm bandpass filter is optimized for mid-infrared gas detection and Analytical Instruments, supporting critical monitoring tasks including methane detection, propane measurement, total hydrocarbon analysis, oil and gas vapor monitoring, BTEX detection, and hydrocarbon VOC monitoring. It also serves industrial inspection systems and process monitoring setups that require precise spectral selection and stable optical performance in the mid-infrared region.

Customization & Service

OPTOStokes offers comprehensive customization options for the BP6680 series, including custom shapes (round, square, and irregular geometries) and mounting ring assemblies to fit specific system requirements. We maintain an extensive in-stock selection of standard optical filters for fast delivery, while supporting high-level custom specifications including tailored Optical Density levels, custom wavelength ranges, and special thin-film coating designs. All products are manufactured to world-class quality standards with reliable, controlled lead times to keep your project on schedule.

Expert Support & Inquiry

For R&D engineers and procurement managers, long lead times, limited custom flexibility, and lack of targeted technical support can cause costly delays to project timelines and compromise system performance. OPTOStokes addresses these challenges with responsive optical engineering guidance, flexible custom manufacturing, and dependable delivery schedules. If you need support with filter selection, custom design validation, or bulk pricing, please reach out to our optical specialists at sales@optofilters.com or submit an inquiry through our website for a prompt, tailored response.

Tags: Bandpass Filters Thin Film Coating Analytical Instruments Optical Density FWHM CWL