◆ Features
High Reflectance: Optimized coating for diverse wavelengths ensures exceptional reflectance performance. Achieves 95% to 99.5% reflectance within the
designated wavelength range.
Low Absorption: Dielectric coatings exhibit minimal absorption, withstanding high-power continuous lasers or repetitive pulsed lasers. For applications requiring
higher laser damage thresholds, consider our high-power laser mirrors (OP-M-HP series).
Specific Angle of Application: The designed incident angle is 45°±3°. Within this angular range, the mirror can maintain excellent optical performance. When used
at angles other than 45°, the reflectivity may decrease.
◆ Common Specifications
Material | Fused Silica |
Coating | Multi-layer Dielectric Coating |
Incident Angle | 45°±3° |
Surface Flatness | λ/10 |
Parallelism | ＜3' |
Surface Quality (Scratch-Dig) | 10–5 |
Clear Aperture | 90% CA |
Back Surface | Polished |
◆ Applications
Laser Processing and Industrial Manufacturing
Laser Research and Precision Metrology
Optical Communications and Remote Sensing
Medical and Biotechnology
◇ Wavelength Matching: Select the corresponding model according to the actual wavelength of the laser in use.
◇ Size Requirements: Determine the outer diameter and thickness based on the spatial layout of the optical system and the beam size.
◇ Reflectivity Requirements: For applications with strict requirements on light attenuation, give priority to models with higher reflectivity.
◇ Consideration of Laser Damage Threshold: Estimate the energy density of the incident laser and ensure that the laser damage threshold of the selected mirror is higher than this energy density.
◇ Energy Density Control: Ensure that the energy density of the incident laser beam does not exceed the laser damage threshold before use. When focusing the beam through a lens or concave mirror (resulting in a narrower beam waist), the increased energy density may damage the mirror due to exceeding its tolerance.
◇ Wavelength Applicability: Reflectance may decrease when used outside the design wavelength range. Mirrors must be selected strictly according to the actual operating wavelength.
◇ Cleaning and Maintenance: Gently wipe with a lint-free cloth dampened in anhydrous ethanol. Avoid using harsh solvents such as acetone. Do not wipe the frosted/matte reverse side to prevent surface damage.
◇ Confirmation of Polarization State: The reflectance specified in technical specifications is represented by the average of the P-polarized and S-polarized reflectances. Note that the actual S-polarized reflectance is slightly higher than that of P-polarized light. The polarization state of the light beam must be explicitly defined during optical system design.
Material | Fused Silica | Clear Aperture | 90% of the diameter |
Diameter | Φ25.4 mm | Diameter Tolerance | 0/-0.1 mm |
Thickness | 5 mm | Thickness Tolerance | ±0.1 mm |
Reflectance | >99.3% | Incident angle | 45°±3° |
Coating | Dielectric multi-layer coating | Back Surface | Polished |
Operating wavelength | 281.8 nm | Parallelism | <3′ |
Surface Quality | 10/5 | Surface Flatness | λ /10(@633 nm) |
LIDT* | 2 J/cm²(*Laser pulse width 10 ns, repetition frequency 20 Hz) | ||
Material | Fused Silica | Clear Aperture | 90% of the diameter |
Diameter | Φ30 mm | Diameter Tolerance | 0/-0.1 mm |
Thickness | 5 mm | Thickness Tolerance | ±0.1 mm |
Reflectance | >99.3% | Incident angle | 45°±3° |
Coating | Dielectric multi-layer coating | Back Surface | Polished |
Operating wavelength | 281.8 nm | Parallelism | <3′ |
Surface Quality | 10/5 | Surface Flatness | λ /10(@633 nm) |
LIDT* | 2 J/cm²(*Laser pulse width 10 ns, repetition frequency 20 Hz) | ||
Material | Fused Silica | Clear Aperture | 90% of the diameter |
Diameter | Φ50 mm | Diameter Tolerance | 0/-0.1 mm |
Thickness | 8 mm | Thickness Tolerance | ±0.1 mm |
Reflectance | >99.3% | Incident angle | 45°±3° |
Coating | Dielectric multi-layer coating | Back Surface | Polished |
Operating wavelength | 281.8 nm | Parallelism | <3′ |
Surface Quality | 10/5 | Surface Flatness | λ /10(@633 nm) |
LIDT* | 2 J/cm²(*Laser pulse width 10 ns, repetition frequency 20 Hz) | ||
Material | Fused Silica | Clear Aperture | 90% of the diameter |
Diameter | Φ25.4 mm | Diameter Tolerance | 0/-0.1 mm |
Thickness | 5 mm | Thickness Tolerance | ±0.1 mm |
Reflectance | >99.5% | Incident angle | 45°±3° |
Coating | Dielectric multi-layer coating | Back Surface | Polished |
Operating wavelength | 308 nm | Parallelism | <3′ |
Surface Quality | 10/5 | Surface Flatness | λ /10(@633 nm) |
LIDT* | 3 J/cm²(*Laser pulse width 10 ns, repetition frequency 20 Hz) | ||
Material | Fused Silica | Clear Aperture | 90% of the diameter |
Diameter | Φ30 mm | Diameter Tolerance | 0/-0.1 mm |
Thickness | 5 mm | Thickness Tolerance | ±0.1 mm |
Reflectance | >99.5% | Incident angle | 45°±3° |
Coating | Dielectric multi-layer coating | Back Surface | Polished |
Operating wavelength | 308 nm | Parallelism | <3′ |
Surface Quality | 10/5 | Surface Flatness | λ /10(@633 nm) |
LIDT* | 3 J/cm²(*Laser pulse width 10 ns, repetition frequency 20 Hz) | ||
Material | Fused Silica | Clear Aperture | 90% of the diameter |
Diameter | Φ50 mm | Diameter Tolerance | 0/-0.1 mm |
Thickness | 8 mm | Thickness Tolerance | ±0.1 mm |
Reflectance | >99.5% | Incident angle | 45°±3° |
Coating | Dielectric multi-layer coating | Back Surface | Polished |
Operating wavelength | 308 nm | Parallelism | <3′ |
Surface Quality | 10/5 | Surface Flatness | λ /10(@633 nm) |
LIDT* | 3 J/cm²(*Laser pulse width 10 ns, repetition frequency 20 Hz) | ||
Material | Fused Silica | Clear Aperture | 90% of the diameter |
Diameter | Φ25.4 mm | Diameter Tolerance | 0/-0.1 mm |
Thickness | 5 mm | Thickness Tolerance | ±0.1 mm |
Reflectance | >99.5% | Incident angle | 45°±3° |
Coating | Dielectric multi-layer coating | Back Surface | Polished |
Operating wavelength | 325~337 nm | Parallelism | <3′ |
Surface Quality | 10/5 | Surface Flatness | λ /10(@633 nm) |
LIDT* | 3 J/cm²(*Laser pulse width 10 ns, repetition frequency 20 Hz) | ||
Material | Fused Silica | Clear Aperture | 90% of the diameter |
Diameter | Φ30 mm | Diameter Tolerance | 0/-0.1 mm |
Thickness | 5 mm | Thickness Tolerance | ±0.1 mm |
Reflectance | >99.5% | Incident angle | 45°±3° |
Coating | Dielectric multi-layer coating | Back Surface | Polished |
Operating wavelength | 325~337 nm | Parallelism | <3′ |
Surface Quality | 10/5 | Surface Flatness | λ /10(@633 nm) |
LIDT* | 3 J/cm²(*Laser pulse width 10 ns, repetition frequency 20 Hz) | ||
Material | Fused Silica | Clear Aperture | 90% of the diameter |
Diameter | Φ50 mm | Diameter Tolerance | 0/-0.1 mm |
Thickness | 8 mm | Thickness Tolerance | ±0.1 mm |
Reflectance | >99.5% | Incident angle | 45°±3° |
Coating | Dielectric multi-layer coating | Back Surface | Polished |
Operating wavelength | 325~337 nm | Parallelism | <3′ |
Surface Quality | 10/5 | Surface Flatness | λ /10(@633 nm) |
LIDT* | 3 J/cm²(*Laser pulse width 10 ns, repetition frequency 20 Hz) | ||
Material | Fused Silica | Clear Aperture | 90% of the diameter |
Diameter | Φ25.4 mm | Diameter Tolerance | 0/-0.1 mm |
Thickness | 5 mm | Thickness Tolerance | ±0.1 mm |
Reflectance | >99.5% | Incident angle | 45°±3° |
Coating | Dielectric multi-layer coating | Back Surface | Polished |
Operating wavelength | 352~355 nm | Parallelism | <3′ |
Surface Quality | 10/5 | Surface Flatness | λ /10(@633 nm) |
LIDT* | 5 J/cm²(*Laser pulse width 10 ns, repetition frequency 20 Hz) | ||
Material | Fused Silica | Clear Aperture | 90% of the diameter |
Diameter | Φ30 mm | Diameter Tolerance | 0/-0.1 mm |
Thickness | 5 mm | Thickness Tolerance | ±0.1 mm |
Reflectance | >99.5% | Incident angle | 45°±3° |
Coating | Dielectric multi-layer coating | Back Surface | Polished |
Operating wavelength | 352~355 nm | Parallelism | <3′ |
Surface Quality | 10/5 | Surface Flatness | λ /10(@633 nm) |
LIDT* | 5 J/cm²(*Laser pulse width 10 ns, repetition frequency 20 Hz) | ||
Material | Fused Silica | Clear Aperture | 90% of the diameter |
Diameter | Φ50 mm | Diameter Tolerance | 0/-0.1 mm |
Thickness | 8 mm | Thickness Tolerance | ±0.1 mm |
Reflectance | >99.5% | Incident angle | 45°±3° |
Coating | Dielectric multi-layer coating | Back Surface | Polished |
Operating wavelength | 352~355 nm | Parallelism | <3′ |
Surface Quality | 10/5 | Surface Flatness | λ /10(@633 nm) |
LIDT* | 5 J/cm²(*Laser pulse width 10 ns, repetition frequency 20 Hz) | ||
Laser Line Mirrors
