Products Description

BP1680nm Bandpass Filter | CWL 1680nm, FWHM 40nm
The OPTOStokes BP1680nm bandpass filter is engineered for high-precision Short-Wave Infrared (SWIR) applications, delivering exceptional signal-to-noise ratios. Optimized for an Angle of Incidence (AOI) of 0 degree, this filter provides a peak transmission of over 90% within the 1675-1685nm range, combined with deep out-of-band blocking (ODave > 2) from 400nm to 2100nm. Designed for critical optical systems, it ensures world-class quality and performance stability for demanding technical environments.
Technical Specifications
| Optical Parameter | Specification Value |
|---|---|
| Center Wavelength (CWL) | 1680 nm ± 2 nm |
| Full Width at Half Maximum (FWHM) | 40 nm ± 5 nm |
| Peak Transmission Range | 1675 - 1685 nm (T > 90%) |
| Out-of-Band Blocking Range | 400 - 2100 nm (ODave > 2) |
| Angle of Incidence (AOI) | 0 degree |
Target Applications
This premium infrastructure is widely adopted in industrial and scientific optical setups. Key applications include:
Gas Detection: Highly calibrated for infrared gas analysis, environmental monitoring, and hydrocarbon detection.
Spectroscopy: Ideal for SWIR spectroscopy systems requiring strict spectral isolation.
Customization and Rapid Prototyping
At OPTOStokes, we bridge the gap between standard inventory and specialized requirements. Beyond our extensive in-stock selection, we offer advanced custom optical coatings tailored to your specific mechanical profiles. We support high-level customization for square, round, and custom-shaped substrates, alongside optional mounting ring assemblies. Our streamlined manufacturing guarantees reliable lead times and world-class precision without compromising quality.
Overcome Procurement Bottlenecks
R&D engineers and purchasing managers frequently encounter delays, poor technical documentation, and rigid production limits. OPTOStokes eliminates these hurdles by offering scalable manufacturing from prototype to mass production. For technical inquiries, custom sizing, or immediate volume quotes, contact our engineering team directly at sales@optofilters.com.
Tags: optical filters bandpass filter SWIR filter 1680nm filter gas detection bandpass coating