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

515, 1030nm, 25.4mm Dia., Dual Band Low GDD Mirror

Stock #17-287
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Surface Quality:
Laser Mirror
Typical Applications:
Beam transport of 1st and 2nd harmonic of Yb:doped lasers
Parallelism (arcmin):
Clear Aperture (%):
Back Surface:
Commercial Polish
Coating Specification:
Rs>99.9% @500-540nm;
Rp>99.8% @505-530nm;
Rs>99.9% @1000-1070nm,
Rp>99.8% @1000-1070nm
GDD Specification:
<35fs2 @ 500 - 540nm (s-pol)
<50fs2 @ 505 - 530nm (p-pol)
<20fs2 @ 1000 - 1070nm (s-pol)
<40fs2 @ 1000 - 1070nm (p-pol)
Wavelength Range (nm):
500 - 540, 1000 - 1070
Surface Flatness:
Coating Type:
S1: Dielectric
S2: Stress-compensating
Ultrafast (500-540, 1000-1070nm)
Design Wavelength DWL (nm):
515, 1030
Diameter (mm):
25.40 +0/-0.1
Thickness (mm):
6.35 ±0.20
Angle of Incidence (°):
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Fused Silica (Corning 7980)

Regulatory Compliance


Product Family Description

  • High Reflectivity & Low GDD for Ultrafast Beam Steering
  • Ion-Beam Sputtered Coatings Minimize Scatter and Absorption Losses
  • Near-Zero Group Delay Dispersion over Design Wavelength Ranges

TECHSPEC® Dual Band Low GDD Ultrafast Mirrors maintain high reflectivity and near-zero group delay dispersion over common Yb doped laser harmonic frequencies. Utilizing Ion-Beam Sputtered Coating Technology these mirrors minimize scatter and absorption loss commonly observed when using other traditional coating application processes. TECHSPEC® Dual Band Low GDD Ultrafast Mirrors are often used in beam steering applications as they will maintain ultrashort pulse durations that can be difficult to preserve when using more conventional laser mirrors.

Technical Information