Laser Mirrors & Laser Windows for High Power Laser Laser Mirrors and Laser Windows with High Damage Thresholds

Laser Mirrors and Laser Windows with High Damage Thresholds

Features

  • High damage threshold
  • High reflectivity (Laser Mirrors)
  • High transmittance (Laser Windows)

Our Laser Mirrors and Laser Windows feature high damage thresholds to high output YAG and Ti-sapphire Lasers. To a YAG laser wavelength of 1064 nm (10 ns, 20 Hz, 1 on 1), the world's top-class laser induced damage threshold of 190 J/cm2 has been achieved for the Laser Mirrors, and 140 J/cm2 for the Laser Windows. The Laser Mirrors have a reflectance of 99.9 % or higher, and the Laser Windows have a transmittance of 99.6 % or higher, both offering high performance.
These products contribute to the development of a variety of fields, leading to improvements to quality and workability of laser finishing, the achievement of state-of-the-art medical treatments by laser equipment, analytical applications in the life sciences, and the development of new materials.

The product line includes 24 cost-efficient Laser Mirrors and 12 Laser Windows.

Shared Specifications

Substrate material Laser Mirrors: S-BSL7
Laser Windows: Synthetic quartz
Radius of curvature ∞ (flat)
Surface Figure (before coating) λ/10 or less, λ= 632.8 nm
Surface Quality (Scratch & Dig) 10-5 (as per MIL-O13830A)
Diameter tolerance +0, -0.1mm
Thickness tolerance ±0.1mm
Wedge ≤ 5 arc min
Clear Aperture Diameter x 0.85
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  • ※RoHS compliant (Directive 2011/65/EU + (EU)2015/863 on the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment)
Schematic Diagram
Schematic Diagram
Laser Mirror Product List (Table of Code Numbers)
Applicable Laser Wavelength Incident Angle Reflectance External Shape (mm)  (Φ:diameter, t:thickness)
Φ12.7t9.53 Φ25.4t9.53 Φ50.8t9.53 Φ76.2t12.7
1064nm R ≧ 99.9%@1064 ± 10nm LM1064-0-D12.7 LM1064-0-D25.4 LM1064-0-D50.8 LM1064-0-D76.2
1064nm 45° R ≧ 99.9%@1064 ± 10nm LM1064-45-D12.7 LM1064-45-D25.4 LM1064-45-D50.8 LM1064-45-D76.2
750 ~ 850nm R ≧ 99.5%@750 ~ 850nm LM800-0-D12.7 LM800-0-D25.4 LM800-0-D50.8 LM800-0-D76.2
750 ~ 850nm 45° R ≧ 99.5%@750 ~ 850nm LM800-45-D12.7 LM800-45-D25.4 LM800-45-D50.8 LM800-45-D76.2
532nm R ≧ 99.9%@532 ± 10nm LM532-0-D12.7 LM532-0-D25.4 LM532-0-D50.8 LM532-0-D76.2
532nm 45° R ≧ 99.9%@532 ± 10nm LM532-45-D12.7 LM532-45-D25.4 LM532-45-D50.8 LM532-45-D76.2
Laser Window Product List (Table of Code Numbers)
Applicable Laser Wavelength Incident Angle Transmittance*2
(Single-Sided Reflectance)
External Shape (mm)  (Φ:diameter, t:thickness)
Φ12.7t1.27 Φ25.4t2.54 Φ50.8t5.08 Φ76.2t7.62
1064nm T ≧ 99.6% (Single sided: R < 0.2%@1064 ± 10nm) LW1064-0-D12.7 LW1064-0-D25.4 LW1064-0-D50.8 LW1064-0-D76.2
750 ~ 850nm T ≧ 99.0% (Single sided: R < 0.5%@750~850nm) LW800-0-D12.7 LW800-0-D25.4 LW800-0-D50.8 LW800-0-D76.2
532nm T ≧ 99.6% (Single sided: R < 0.2%@532 ± 10nm) LW532-0-D12.7 LW532-0-D25.4 LW532-0-D50.8 LW532-0-D76.2
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  • *2: Transmittance is calculated from single-sided reflectance.
Laser Mirror Damage Thresholds and Reflectance (Comparison with Other Companies)
Laser Mirror Damage Thresholds and Reflectance (Comparison with Other Companies)
  • Note: These values are from Shimadzu measurement by the evaluation method below. The values are not guaranteed.
Laser Window Damage Thresholds (Comparison with Other Companies)
Laser Window Damage Thresholds (Comparison with Other Companies)
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  • Note: These values are from Shimadzu measurement by the evaluation method below. The values are not guaranteed.

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