Mirrors

CVI Mirrors are used for beam routing, alignment, and sampling. At CVI Laser Optics, we understand the performance demanded of laser mirrors: low scatter, excellent surface figure, high laser damage threshold, and reliability. We have mirrors for every typical laser application, including partial and high reflectivity mirrors coated on flat and curved substrates for use at single, dual, or broadband wavelengths. Our diverse coating technologies enable performance at wavelengths from 190 – 2100 nm, and include e-beam dielectric, advanced plasma source, high density aluminum, silver, and gold mirror coatings. 

We work regularly with OEM customers to create mirrors specifically for their systems. Shape, dimensions, substrate material, and radius of curvature can all be customized. Any of our robust, high performance standard coatings can be applied at your choice of wavelength and angle of incidence, or we can design a coating to fit your exact spectral needs. With mirrors capable of withstanding as high as 40 J/cm2 of pulsed power at 1064 nm, specialized vacuum aluminium coatings for semiconductor application, and over 40 years of experience in designing and manufacturing laser optics, we can create the right mirror for you.

Capabilities

  Standard Custom Options
Types
  • Narrowband partial reflecting
  • Narrowband laser line
  • Dual band laser line
  • Broadband dielectric
  • Metal coated
  • Custom wavelengths (between 190nm and 2100nm)
  • Custom shapes (curved, cylindrical)
Materials N-BK7, UV-grade fused silica CaF2, Zerodur
Diameter 12.7 to 101.6 mm 3 to 300 mm
Radius of curvature Concave or convex : 0.10 – 5.00 m Other radii
Angle of incidence 0°, 45° Other AOI’s
Coatings
  • Partial reflecting, 30% to 99%
  • Laser line
  • Dual wavelength
  • UV aluminum
  • Protected silver
  • Protected gold
  • Custom reflectivity, 10% to 99%
  • Other wavelengths (190 - 2100 nm)
  • Other angles of incidence
  • Ultra-high damage threshold
Quality Precision, Laser quality See manufacturing tolerances below

Mirror Manufacturing Capabilities**

Surface Tolerances Precision Laser Quality
Surface Quality (scratch - dig) 20 - 10 10 - 5
Surface roughness (Å, RMS) 20 5
Surface Figure (P-V @ 633 nm before coating) λ/4 λ/10
Dimensional Tolerances Standard Precision
Diameter (mm) +0/-0.25 +0/-0.10
Thickness (mm) ± 0.25 ± 0.10
Angular deviation ≤ 5 arc min ≤ 10 arc sec
Clear Aperture ≥ 85% ≥ 85%

 

** Note: The general tolerance specifications above are intended to guide determination of appropriate tolerances based both on relative cost and manufacturability. Part-specific tolerances will vary depending on size, material, shape and aspect ratio. Tighter tolerances may be possible, so please contact us to discuss your custom specifications. All specifications do not need to be from a single column, though trade-offs may be required in order to meet the desired combination of cost and performance.