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All Products / Optics / Optical Mirrors / Ultrafast Laser Mirrors / Low GDD Dielectric Ultrafast Laser Mirrors
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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

920nm, 50.8mm Dia. x 9.53mm Thickness, Ultrafast Laser Mirror

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Stock #26-834 3-5 days
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Angle of Incidence (°):
45
Coating:
Ultrafast (870-970nm)
Design Wavelength DWL (nm):
920
Diameter (mm):
50.80 +0.00/-0.10
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Fused Silica (Corning 7980)
Surface Quality:
10-5
Thickness (mm):
9.53 ±0.20
Type:
Laser Mirror
Parallelism (arcmin):
<3
Clear Aperture (%):
90
Durability:
MIL-PRF-13830B
Back Surface:
Commercial Polish
Coating Specification:
R(avg) S & P >99.90% @ 920nm @ 45° AOI
R(avg) >99.7% @ 880 - 960nm @ 45° AOI
Wavelength Range (nm):
870 - 970
Surface Flatness (P-V):
λ/8 over 70% CA
Coating Type:
Dielectric
GDD Specification:
±20 fs2 @ 870 - 970nm @ 45° AOI (s-pol)
±20 fs2 @ 900 - 940nm @ 45° AOI (p-pol)

Regulatory Compliance

RoHS:
Compliant
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Certificate of Conformance:
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Product Family Description

    • GDD as Low as ±20fs2 at Design Wavelength Range
    • Greater than 99.9% Reflectivity
    • Ideal for Ti:sapphire and Yb:doped Ultrafast Lasers

    TECHSPEC® Low GDD Dielectric Ultrafast Laser Mirrors feature a multilayer dielectric coating on fused silica substrates for excellent reflectivity of greater than 99.9%, and low coefficient of thermal expansion, making them ideal for ultrafast beam transport applications. These mirrors have a group delay dispersion (GDD) of near zero at their design wavelength range, minimizing dispersion of the reflected beam. TECHSPEC® Low GDD Dielectric Ultrafast Laser Mirrors are ideal for utilizing the first and second harmonic of Ti:sapphire and Yb:doped lasers for applications such as laser machining and welding.  

    Note: Please contact us if your application requires a TECHSPEC Low GDD Ultrafast Mirror with a custom wavelength, angle, or size.