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857.875-0.75 OD6 Ultra Narrow Bandpass Filter
857.875-0.75 OD6 Ultra Narrow Bandpass Filter
- Specifications
- Description
Specifications
Additional information
| Angle of Incidence | 0 Degrees |
|---|---|
| Filter Design | Multi-Cavity |
| Center Wavelength | 857.875 nm Nominal |
| FWHM | < 0.85 nm |
| † Transmission Band(s) | 857.875 nm > 85% T Absolute |
| Blocking Level | OD6 |
| * Blocking Range(s) | OD6: 200 to 836 nm, 872 to 1200 nm; OD4: 1200 to 1400 nm |
| Dimensions | 12.6 mm Diameter |
| Filter Thickness | 0.7 mm |
| Substrate Type | Borofloat® |
| Assembly Type | Unmounted |
*Auxiliary blocking typical based on the displayed spectrum.
†For filters with less than 1nm bandwidth, measurement limitations may result in slight transmission variation. Please contact us for more information.
Description
Description
Ultra-narrowband optical interference filter with a 857.875 nm center wavelength (CWL), a 0.75 nm full-width at half-maximum (FWHM), and wide-range OD6 out-of-band blocking from 200 nm to 1200 nm. This is a multi-cavity filter with exceptionally steep edges, a flat top, and transmission that is greater than 85% at 857.875 nm. This unmounted ultra-narrowband filter is coated on a 0.7 mm thick Borofloat® substrate and is 12.6 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.
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