FB1620-12 Dia:1 in Bandpass Filter; CWL=1620 +-2.4nm; FWHM=12 +-2.4nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- Cut Off Frequency
- 1626 nm
- Cut On Frequency
- 1614 nm
Material
- Name
- Soda Lime
- Dispersion Equation
- Cauchy
- n (λ)
- 1.5061929548026824
- λ
- 1620 nm
- A
- 1.513
- B
- -0.003169 μm-2
- C
- 0.003962 μm2
- D
- 0 μm4
- E
- 0 μm6
- F
- 0 μm8
- G
- 0 μm10
- H
- 0 μm12
FB1620-12 Dia:1 in Bandpass Filter; CWL=1620 +-2.4nm; FWHM=12 +-2.4nm
The FB1620-12 is a Bandpass Filter from Thorlabs, a leading vendor in the optical industry. This filter is designed with a circular base shape and a diameter of 1 inch (25.4 mm), making it compatible with a wide range of optical systems. The filter has a thickness of 3.5 mm, providing sufficient structural integrity for most applications.
The FB1620-12 filter is specifically designed to operate around a center wavelength (CWL) of 1620 nm, with a full width at half maximum (FWHM) of 12 nm. This means it allows light transmission in a narrow band around the CWL, effectively blocking out unwanted wavelengths. The cut-on wavelength is 1614 nm, and the cut-off wavelength is 1626 nm, further illustrating the filter's narrowband characteristics.
The filter's coating is a crucial component, enhancing its performance. Both the front and back surfaces of the filter are coated with the same coating, denoted as 'tho fb1620-12'. This coating is designed to optimize the filter's performance within its specified wavelength range.
The FB1620-12 filter is available in a Thin Lens shape, which can be beneficial in certain optical configurations. The filter's current status is 'in stock', according to the vendor's website, ensuring quick delivery for your optical needs.
