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

50.8mm Dia. x 190.6mm EFL, Ultrafast-Enhanced Silver Coated, 50Å OAP Mirror

TECHSPEC® Ultrafast-Enhanced Silver Coated Off-Axis Parabolic (OAP) Mirrors

TECHSPEC® Ultrafast-Enhanced Silver Coated Off-Axis Parabolic (OAP) Mirrors

Stock #17-152 New
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Off-Axis Parabolic Mirror
Diameter (mm):
50.80 +0.00/-0.10
Effective Focal Length EFL (mm):
Focal Length Tolerance (%):
Ultrafast-Enhanced Silver (600-1050nm)
Coating Type:
Ultrafast Enhanced Silver
Coating Specification:
Ravg >99% @ 600 - 1000nm, 0°
Rs >99% @ 540 - 1000nm, 45°
Rp >98.5% @ ~730 - 870nm, 45°
Off-Set Angle (°):
Parent Focal Length PFL (mm):
Surface Figure, RMS:
Surface Roughness (Angstroms):
<50 RMS
Wavelength Range (nm):
600 - 1050
Surface Quality:
Compatible Mounting Plates:
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Aluminum 6061-T6
Y Offset (mm):
Reflected Wavefront, RMS:

Regulatory Compliance


Product Family Description

  • Ultrafast-Enhanced Silver Coating for Ti:sapphire and Yb:doped Lasers
  • Low Group Delay Dispersion of 0 ±20fs2 @ 600 - 1050nm
  • <50Å RMS Surface Roughness to Minimize Scatter

TECHSPEC® Ultrafast-Enhanced Silver Coated Off-Axis Parabolic (OAP) Mirrors are used to collimate or focus incident light at a specified offset angle. These mirrors are coated with an ultrafast-enhanced silver coating providing >99% reflectivity from 600 - 1050nm while maintaining a low group delay dispersion (GDD) of 0 ±20fs2. The off-axis design of these mirrors separates the focal point from the beam path, allowing for more interactive space around the focal point without disrupting the incident beam. TECHSPEC Ultrafast-Enhanced Silver Coated OAP Mirrors are ideal for focusing laser light from low-to-medium power ultrafast lasers, including Ti:sapphire and Yb:doped fiber lasers, while minimizing the temporal spreading of the ultrafast pulses. Mounting plates with holes perpendicular to the optical axis are available for mounting these mirrors into benchtop systems.