1571.91-0.45 OD6 Ultra Narrow Bandpass Filter



1571.91-0.45 OD6 Ultra Narrow Bandpass Filter


Ultra-narrowband optical interference filter with a 1571.91 nm center wavelength (CWL), a 0.45 nm full-width at half-maximum (FWHM), and wide-range OD6 out-of-band blocking from 800 nm to 1800 nm. This is a multi-cavity filter with transmission that is greater than 85% at 1571.91 nm. This unmounted ultra-narrowband filter is coated on a 5 mm thick fused silica substrate and is 38.1 mm (± 0.1 mm) in diameter. Alluxa ultra-narrow bandpass filters have the highest transmission and narrowest bandwidths currently available. And because they are hard-coated using our innovative SIRRUS™ plasma deposition process, all Alluxa optical filters are highly durable and resistant to laser damage. Contact us for custom sizing options.


Item Number 7312
Angle of Incidence 0 Degrees
Center Wavelength 1571.91 nm Nominal
FWHM < 0.55 nm
Transmission Band(s) 1571.91 nm > 85% T Absolute
Blocking Level OD6
Blocking Range(s)* OD6: 1604 to 1800 nm, 800 to 1540 nm
Filter Design Multi-Cavity
Substrate Type Fused Silica
Dimensions 38.1 mm Diameter
Filter Thickness 5.0 mm
Assembly Type Unmounted

Availability: In stock


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