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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

808nm, 25mm Diameter, OD 4.0 Notch Filter

TECHSPEC OD 4.0 Notch Filters

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Stock #86-702
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S$592.50
Qty 1-5
S$592.50
Qty 6+
S$468.00
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Diameter (mm):
25.00 +0.00/-0.10
Optical Density OD (Average):
≥4.0
Clear Aperture CA (mm):
21.3
Center Wavelength CWL (nm):
808.00
Design Wavelength DWL (nm):
808
Full Width-Half Max FWHM (nm):
40.00
Coating:
Hard Coated
Surface Quality:
60-40
Thickness (mm):
5.00
Thickness Tolerance (mm):
±0.1
Transmission (%):
90
Transmission Wavelength (nm):
600 - 1070
Type:
Notch Filter
Construction:
Mounted in Black Anodized Ring
Reflection at CWL (%):
99
Transmitted Wavefront, RMS:
<1λ
Mount Thickness (mm):
5.0
Substrate Thickness (mm):
3.5 ±0.5

Regulatory Compliance

RoHS 2015:
Reach 224:
Certificate of Conformance:

Product Family Description

TECHSPEC® OD 4.0 Notch Filters are low-cost alternatives to Rugate Notch Filters. TECHSPEC OD 4.0 Notch Filters feature narrow rejection bands of just ±2.5% of the center wavelength while offering greater than 99% reflection of the laser wavelength. These optical filters are hard coated to guarantee performance that will not degrade with time, temperature, or humidity. Each optical filter has been mounted in a black anodized ring that has been engraved to ease filter handling, identification, and orientation.

Note: These filters are optimized for high spectral performance rather than high Laser Induced Damage Thresholds (LIDT). A typical LIDT for these filters is 1 J/cm2 @ 532nm, 10ns. Please contact us if you require a filter with a higher LIDT value.

This graph is an example of a standard notch filter transmission curve. For specific wavelength data, please refer to the curve PDF attached to each respective part.
This graph is an example of a standard notch filter transmission curve. For specific wavelength data, please refer to the curve PDF attached to each respective part.
All mounted TECHSPEC® Optical Filters have an arrow on the side of the mount that points to the filter-coated surface for quick reference. Filter oriented such that arrow points to filter coated surface S1. Anti-reflective (AR) coating is applied to S2.
All mounted TECHSPEC® Optical Filters have an arrow on the side of the mount that points to the filter-coated surface for quick reference. Filter oriented such that arrow points to filter coated surface S1. Anti-reflective (AR) coating is applied to S2.
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