980DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 980nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- Cut Off Frequency
- 985 nm
- Cut On Frequency
- 975 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4506723352589712
- λ
- 980 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
980DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 980nm
The 980DIB12 is a 12.5 mm diameter Standard Interference Bandpass Filter, specifically designed to operate at a central wavelength of 980nm. This filter is sourced from Knight Optical, a reputable vendor known for their high-quality optical components.
The filter is a Bandpass type, which means it allows transmission of light within a specific range of wavelengths while blocking other wavelengths. In this case, the cut-on wavelength is 975nm, and the cut-off wavelength is 985nm, ensuring a tight bandpass around the central wavelength.
The 980DIB12 is made from UVFS Mal-1965, a material known for its excellent optical properties. The filter has a Thin Lens shape, which is beneficial for applications where minimal thickness is required. The geometry of the filter includes a diameter of 12.5mm and a thickness of 6.1mm.
The filter's front and back surfaces are coated with KNI 980DIB, a coating specifically designed for this filter. This coating enhances the filter's performance by ensuring high transmission within the passband and high blocking outside of it.
