Negative Dispersion Mirror for Femtosecond Laser / GFM_GCM
This mirror has a negative dispersion and can be used for pulse compression in a femtosecond laser system.
Specifications
| Material | BK7 |  |
|---|---|---|
| Coating | Dielectric Multi-layer Coating | |
| Incident Angle | 0° － 20° | |
| Surface Flatness | λ/10 | |
| Parallelism | ＜5″ | |
| Surface Quality (Scratch-Dig) | 10-5 | |
| Clear Aperture | 80% of the diameter | |
| Rear Surface | Polished |
| Schematic | Outline Drawing |
|---|---|
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Negative Dispersion Mirror for Femtosecond Laser (Plano)
| Product Number | Wavelength Range | Diameter φD |
Thickness tc |
Reflectance | Laser Damage Threshold* |
|---|---|---|---|---|---|
| GFM-12.7C05-800 | 700 － 900nm | φ12.7mm | 5mm | ＞99.8% | 0.5J/cm2 |
| GFM-25.4C05-800 | 700 － 900nm | φ25.4mm | 5mm | ＞99.8% | 0.5J/cm2 |
| GFM-30C05-800 | 700 － 900nm | φ30mm | 5mm | ＞99.8% | 0.5J/cm2 |
*Laser Pulse width: 50fs, wavelength: 800nm
Negative Dispersion Mirror for Femtosecond Laser (Concave)
| Product Number | Wavelength Range | Diameter φD |
Edge Thickness te |
Radius of Curvature r |
Reflectance | Laser Damage Threshold* |
|---|---|---|---|---|---|---|
| GCM-30C07-50-800 | 700 － 900nm | φ30mm | 7mm | 50mm | ＞99.8% | 0.5J/cm2 |
| GCM-30C07-100-800 | 700 － 900nm | φ30mm | 7mm | 100mm | ＞99.8% | 0.5J/cm2 |
| GCM-30C05-500-800 | 700 － 900nm | φ30mm | 5mm | 500mm | ＞99.8% | 0.5J/cm2 |
| GCM-30C05-1000-800 | 700 － 900nm | φ30mm | 5mm | 1000mm | ＞99.8% | 0.5J/cm2 |
*Laser Pulse width: 50fs, wavelength: 800nm
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