Coad | 663576 | Typical Applications | ||
Type | Damage-Resistant Green Light Femtosecond Mirror | Clear Aperture | >80% | |
Substrate | UVFS Corning 7980 0F | Parallelism | <5 arcmin | |
Diameter(mm) | 25.40 | Surface Quality S1 | 10-5 S-D per CA (MIL-PRF-13830B) | |
Diameter Tolerance | +0/-0.1mm | Surface Quality S2 | ||
Thickness(mm) | 6.35 | Surface Flatness | λ/5 @633 nm over CA | |
Thickness Tolerance | +0/-0.1mm | Laser Damage Threshold | > 0.12 J/cm², 515 nm, 500 fs, 10 kHz > 0.7 J/cm², 515 nm, 10 ps, 10 kHz | |
Wavelength(nm) | 500 - 530 | GDD | |GDD R|<10 fs² | |
AOI(°) | 0 | Coating Type | IBS | |
Coating Specifications | S1:HR>99.9% @ 500-530 nm / S2:uncoated |

The Ultrafast Laser Line Mirror is a key optical component specifically designed for femtosecond/picosecond laser systems in the wavelength range of 500–570 nm (green light). It completely addresses the three major concerns that matter most to you: Are standard mirrors suitable for ultrashort pulse lasers? Can they fully preserve the temporal characteristics of the pulses? Can they withstand high peak intensities? With our ultrafast mirrors, these concerns are no longer a problem.
This series of green light femtosecond mirrors achieves >99.8% high reflectivity within the design wavelength range, while keeping the Group Delay Dispersion (GDD) strictly controlled to <10 fs². This ensures almost zero temporal broadening for femtosecond pulses before and after the mirror, perfectly preserving the original pulse shape and phase information of sub-100 femtosecond pulses. The mirror surface and coating are fabricated using advanced Ion Beam Sputtering (IBS) technology, which offers extremely high coating density and adhesion. This technology significantly reduces spectral drift caused by temperature, humidity, and vacuum environmental changes, and minimizes scattering and absorption losses, ensuring long-term stability and precision under high-power operation.
Additionally, the Laser Induced Damage Threshold (LIDT) of this series of mirrors can reach >3 J/cm² (10 ns single pulse), withstanding fatigue and ablation under high peak intensity and high repetition frequency conditions. With excellent optical performance and reliable environmental adaptability, this damage-resistant green light ultrafast mirror is not only ideal for ultrafast spectroscopy, nonlinear optics experiments, and time-resolved measurements, but also widely applicable in precision micro-machining, multiphoton microscopy, and industrial laser processing, providing the most robust performance assurance for your femtosecond laser system.
Precautions: To ensure optimal performance, it is recommended to store and use the mirror in an environment at 25°C with a relative humidity of 40%–60%. If the mirror surface becomes contaminated, gently wipe it with 99% or higher alcohol and a lint-free lens cleaning tissue. Avoid using rough fabrics, water, or cleaning agents containing abrasive particles, as they may damage the coating.
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