BP1170nm Bandpass Filter | CWL 1170nm±2nm, FWHM 10±2nm

The BP1170nm Bandpass Filter is a precision near-infrared optical filter designed for applications requiring accurate wavelength selection around 1170nm. Featuring greater than 90% transmission at the center wavelength, a narrow 10nm bandwidth, and average optical density greater than OD3 across the 1000-1900nm blocking range, this filter delivers excellent signal isolation and suppression of unwanted spectral noise. It is particularly suitable for NIR gas detection, spectroscopy, and advanced optical sensing systems.

Technical Specifications

Applications

The BP1170nm filter is optimized for near-infrared optical systems requiring high spectral purity and stable wavelength control. Typical applications include:

• Gas detection and gas analysis instruments

• NIR spectroscopy systems

• Industrial process monitoring

• Optical sensing and photodetector integration

• Agricultural and environmental monitoring equipment

• Scientific instrumentation and analytical devices

For systems requiring precise wavelength discrimination, this narrow bandpass filter architecture helps improve signal-to-noise ratio and measurement repeatability. It can also be integrated into advanced optical filters for spectroscopy platforms where spectral selectivity is critical. In NIR sensing applications, combining this filter with complementary NIR optical filter solutions can further enhance system performance.

Customization & Service

OPTOStokes supports extensive customization for OEM and research projects. Filters can be supplied in round, square, rectangular, or custom-shaped formats. Optional retaining rings and mechanical mounting solutions are available for direct integration into optical assemblies.

In addition to standard specifications, customized wavelength, bandwidth, blocking level, substrate thickness, dimensional tolerances, and coating performance can be developed according to application requirements. Extensive stock availability, controlled production schedules, and strict quality assurance help reduce project risks and accelerate development timelines.

Customization & Service

Many engineering teams face challenges such as long lead times, inconsistent coating performance, limited customization support, and difficulties sourcing reliable optical filters for production-scale deployment. These issues can delay product development and increase validation costs.

OPTOStokes provides both in-stock and custom optical filter solutions with reliable quality, responsive technical support, and controlled delivery schedules. If you are evaluating a 1170nm bandpass filter for gas sensing, spectroscopy, or OEM integration, contact our technical team at sales@optofilters.com or submit an inquiry through www.optofilters.com for application-specific recommendations and quotation support.