Coad | 663634 | Typical Applications | ||
Type | Damage-Resistant Zero Dispersion Flat Mirror | Clear Aperture | ||
Substrate | UVFS | Parallelism | ||
Diameter(mm) | 25.40 | Surface Quality S1 | ||
Diameter Tolerance | +0/-0.1mm | Surface Quality S2 | ||
Thickness(mm) | 6.35 | Surface Flatness | ||
Thickness Tolerance | +0/-0.1mm | Laser Damage Threshold | ||
Wavelength(nm) | 660 - 730 | GDD | 0fs² | |
AOI(°) | 0 | Coating Type | Dielectric Film | |
Coating Specifications | HR>99.97%@660-730nm |

In femtosecond laser systems, several key issues often arise: Are these standard mirrors suitable for my laser system? Can they preserve the temporal characteristics of the laser pulses? Can they withstand high peak intensities? If you are using our ultrafast mirrors specifically designed for femtosecond and picosecond lasers, then you don't need to worry about these problems. Our zero dispersion high-damage flat mirror, designed for ultrafast laser systems (especially femtosecond lasers), ensures that the temporal characteristics of the laser beam are unaffected during transmission, while withstanding extremely high peak intensities.
The core design of this mirror focuses on minimizing or completely eliminating group delay dispersion (GDD), effectively preventing distortion that could occur during the transmission of ultrafast laser pulses in the optical path. With this design, the mirror accurately preserves the shape and temporal structure of the laser pulses, ensuring that each pulse reaches ideal quality, suitable for high-power, high-repetition-rate ultrafast laser systems. Whether for research experiments or industrial applications, using this mirror guarantees the precision and stability of the laser pulses in your system.
Another significant advantage of the zero dispersion high-damage flat mirror is its broadband reflection capability, maintaining high reflectivity over a wide wavelength range. This not only effectively reduces laser energy loss but also significantly improves the system's operational efficiency. In applications that require long-term high-power operation, such as high-power femtosecond lasers, precision machining, and nonlinear optics experiments, the mirror’s efficient reflection and low energy loss are particularly important.
Additionally, the mirror’s coating is carefully optimized to effectively resist environmental changes, such as temperature fluctuations and humidity variations, ensuring stable optical performance even in extreme conditions. This durability and stability make it an ideal choice for long-term high-efficiency operation, providing continuous and reliable optical support for your ultrafast 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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