MultiBandpass Filter 940/1210/1300/1550

The MultiBandpass Filter 940/1210/1300/1550 delivers precision spectral transmission across four critical near-infrared and SWIR wavelengths in a single optical element. Engineered for multi-channel detection systems, this filter enables simultaneous measurement at 940 nm, 1210 nm, 1300 nm, and 1550 nm—ideal for telecommunications testing, NIR spectroscopy, and multi-wavelength imaging applications.

Key Features

• Quad-band transmission: High throughput at 940, 1210, 1300, and 1550 nm with steep transition edges
• Precision coating: Ion-assisted deposition ensures spectral accuracy and environmental stability
• Low crosstalk: Deep blocking between passbands minimizes channel interference
• Durable construction: Hard-coated surfaces resist handling and cleaning in lab environments
• Standard substrates: Available on optical-grade glass for integration into existing optical paths

Applications

• Fiber-optic component testing and DWDM system characterization
• Multi-wavelength NIR/SWIR spectroscopy and sensing
• Telecommunications wavelength monitoring and analysis
• Research instrumentation requiring simultaneous NIR/SWIR detection

Each filter is manufactured to tight tolerances and supplied with measured transmission data. Compatible with standard 25 mm or 50 mm optical mounts.