87-822 12.5 mm Dia. Hard Coated OD 4.0 25nm Bandpass Filter; t=3.5 mm 1550nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- Cut Off Frequency
- 1562.5 nm
- Cut On Frequency
- 1537.5 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4440236216729967
- λ
- 1550 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
87-822 12.5 mm Dia. Hard Coated OD 4.0 25nm Bandpass Filter; t=3.5 mm 1550nm
The 87-822 is a Bandpass Filter with a diameter of 12.5 mm, sourced from the reputable vendor, Edmund Optics. This filter is specifically designed for a central wavelength of 1550 nm, making it suitable for applications that require precise filtering within this range.
The filter boasts a hard coating on both the front and back surfaces, denoted as 'edm 87-822'. This coating enhances the filter's durability, making it resistant to wear and tear, a crucial factor for components subjected to frequent handling or harsh environments.
The physical data of the filter reveals a cut-on wavelength of 1537.5 nm and a cut-off wavelength of 1562.5 nm. This 25 nm bandpass, situated between the cut-on and cut-off wavelengths, is where the filter allows maximum transmission, effectively isolating the desired wavelength range from others.
The filter's geometry is another notable feature. It has a thickness of 3.5 mm, which, combined with its circular shape and thin lens design, ensures efficient light transmission and minimal distortion.
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