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FB1550-40 Dia:1 in Bandpass Filter; CWL=1550 +-8nm; FWHM=40 +-8nm

FB1550-40 Dia:1 in Bandpass Filter; CWL=1550 +-8nm; FWHM=40 +-8nm

Type
Filter
Subtype
Bandpass Filter
Brand
Thorlabs
Product webpage
Thorlabs products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
25.4 mm
Cut Off Frequency
1570 nm
Cut On Frequency
1530 nm

Material

Name
Soda Lime
Dispersion Equation
Cauchy
n (λ)
1.5070355930046826
λ
1550 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

FB1550-40 Dia:1 in Bandpass Filter; CWL=1550 +-8nm; FWHM=40 +-8nm

The FB1550-40 is a Bandpass Filter, part of the extensive catalog of optical elements offered by Thorlabs. This particular filter is designed with a circular base shape, made from soda lime ru clear material. The filter has a diameter of 1 inch (25.4 mm) and a thickness of 3.5 mm, making it a compact yet effective optical component.

The FB1550-40 operates at a central wavelength (CWL) of 1550 nm, with a full width at half maximum (FWHM) of 40 nm. The cut-on wavelength is 1530 nm, and the cut-off wavelength is 1570 nm, providing a narrow bandwidth for specific wavelength selection.

The filter's coating is consistent on both the front and back, with a coating identified as 'tho fb1550-40'. This coating enhances the filter's performance and durability. The filter's shape is described as 'Thin Lens', suggesting it may have lens-like properties or be used in conjunction with lenses in optical systems.

According to the vendor's information, the filter is currently in stock and the web link provided is valid. This filter is a reliable choice for applications that require precise wavelength selection in the 1550 nm range.

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