A bandpass filter is an optical component that allows light within a specific wavelength range to pass through while blocking other wavelengths. Its core characteristics include parameters such as center wavelength, full width at half maximum (FWHM), transmittance, and dimensions. The 807nm bandpass filter is primarily designed for selective transmission of light around the 807nm spectrum and is commonly used in spectral analysis, imaging, and laser applications.

Key Parameters and Specifications of the 807nm Bandpass Filter

Core Optical Parameters

• Center Wavelength: 807nm, which falls within the near-infrared range and can be used in applications such as infrared imaging and laser spectral isolation.
• Full Width at Half Maximum (FWHM): The FWHM varies significantly across different products. For instance, imported models may have an FWHM of 70nm (e.g., Φ12.7mm specifications), while the passband can be as narrow as 10nm (e.g., center wavelengths of 800nm, 810nm, and other similar specifications). A smaller FWHM indicates higher wavelength selectivity.
• Blocking Depth: Some products offer a blocking depth of ≥OD3@200-1200nm, effectively blocking interference from non-target wavelengths.