1650.5-0.8 OD4 Ultra Narrow Bandpass Filter
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1650.5-0.8 OD4 Ultra Narrow Bandpass Filter
- Specifications
- Description
Specifications
Additional information
| Angle of Incidence | 0 Degrees |
|---|---|
| Filter Design | Multi-Cavity |
| Center Wavelength | 1650.5 nm Nominal |
| FWHM | < 0.8 nm |
| † Transmission Band(s) | 1650.5 nm > 90% T Absolute |
| Blocking Level | OD4 |
| * Blocking Range(s) | OD4: 300 to 1638 nm, 1664 to 1800 nm |
| Dimensions | 25.4 mm Diameter |
| Substrate Type | Fused Silica |
| Filter Thickness | 2.0 mm |
| Assembly Type | Anodized Aluminum Ring |
| Assembly Thickness | 5.0 mm |
*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 1650.5 nm center wavelength (CWL), a 0.8 nm full-width at half-maximum (FWHM), and wide-range OD4 out-of-band blocking from 300 nm to 1800 nm. This is a multi-cavity filter with moderately steep edges, a flat top, and transmission that is greater than 90% at 1650.5 nm. This ultra-narrowband filter is coated on a 2.0 mm thick fused silica substrate and mounted in a 25.4 mm ( 0/-0.2 mm) diameter, 5 mm (± 0.1 mm) thick anodized aluminum ring. 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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