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FB2250-500 Dia. 1 in IR Bandpass Filter; CWL=2.25 µm; FWHM=500nm

FB2250-500 Dia. 1 in IR Bandpass Filter; CWL=2.25 µm; FWHM=500nm

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
2500 nm
Cut On Frequency
2000 nm

Material

Name
Sapphire ow
Dispersion Equation
Sellmeier
n (λ)
1.7322560974284797
λ
2250 nm
B1
1.4313493
C1
0.005279926 μm2
B2
0.65054713
C2
0.014238265 μm2
B3
5.3414021
C3
325.0178341 μm2

FB2250-500 Dia. 1 in IR Bandpass Filter; CWL=2.25 µm; FWHM=500nm

The FB2250-500 is a high-quality bandpass filter developed by Thorlabs, a leading vendor in the optical industry. This filter is specifically designed for infrared (IR) applications, with a central wavelength (CWL) of 2.25 µm and a full width at half maximum (FWHM) of 500nm.

The filter is made from sapphire ow mal-1972, a material known for its excellent optical properties and durability. It features a circular base shape with a diameter of 1 inch (25.4mm) and a thickness of 3mm, making it compatible with a wide range of optical systems.

The FB2250-500 is coated on both the front and back sides with Thorlabs' proprietary coating (tho fb2250-500), which enhances its performance in IR applications. The filter is designed with a thin lens shape, which contributes to its high optical quality and versatility.

According to the vendor's information, the filter is currently in stock and can be purchased directly from Thorlabs' website using the provided catalog number. The link to the product page is also provided for your convenience.

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