Laser Mirrors for Dual Wavelengths

• Substrate Material: UV fused silica for <400nm, BK7 for ≥400nm
  
• Clear Aperture: larger than central 85% of diameter
  
• 1st Surface: λ/10 @633nm before coating, 10-5 Scratch-Dig
  
• 2nd Surface: Commercial polish
  
• Diameter tolerance: +0.000/-0.010" (+0.00/-0.25mm)
• Thickness tolerance: ±0.010" (±0.25mm)
• Bevel: <0.5mm @45° typical
• Wedge: ≤5 arc min
• Coating technology: e-beam multilayer dielectric
• Reflection:
  
• Dual YAG wavelengths Laser Mirror: R>99.0% for both 532/1064nm
  
• Laser Mirror with Tracer: R>99.0% for Laser wavelength, R>80.0% for Tracer
  
• Damage threshold: >8J/cm², 20ns, 20Hz; >3MW/cm² , CW @1064nm



  Spectral Optics offers hybrid laser mirrors that provide high reflectivity and durability at both Nd:YAG and doubled YAG wavelengths at either 0° or 45° and also afford the convenience of system alignment using using visible wavelength tracer lasers.
  The dual wavelengths (1064nm & 532nm) YAG laser mirrors give R>99.0% at both wavelengths. Tracer laser options for either 633 nm HeNe and 670 nm diode laser wavelengths can be provided. Reflectivity is > 99.0% at the laser wavelength and >80.0% at the tracer wavelength. Damage threshold considerations for visible and near-IR wavelengths are similar to standard mirrors. For high-power applications in the UV, consult a Spectral Optics engineer to determine the best solution.

STANDARD COMBINATIONS with Tracer

Product Code:

1. Dual YAG wavelengths

2. Laser Mirror with Tracer:

NOTE:

1. Other dual laser wavelengths or Tracer can be supplied on request.
2. Other substrate sizes and thicknesses are also available.
3. Please describe your custom requirements on the RFQ form.