Low Dispersion Mirrors for Femtosecond Laser / FLM_FLMHP
This mirror is designed to provide low wavelength dispersion suitable for use with ultra-short pulse lasers with 100 femtosecond or less.
Specifications FLM/FLMHP
| Material | BK7(FLM) Synthetic fused silica(FLMHP) |  |
|---|---|---|
| Coating | Dielectric Multi-layer Coating | |
| Incident Angle | 45°±3° | |
| 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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Low Dispersion Mirror for Femtosecond Laser
| Part Number | Wavelength Range (S polarization) |
Wavelength Range (P polarization) |
Diameter φD |
Thickness t |
Reflectance | Laser Damage Threshold* |
|---|---|---|---|---|---|---|
| FLM1-12.7C05-800 | 720 － 900nm | 760 － 840nm | φ12.7mm | 5mm | ＞99.8% | 1J/cm2 |
| FLM1-25.4C05-800 | 720 － 900nm | 760 － 840nm | φ25.4mm | 5mm | ＞99.8% | 1J/cm2 |
| FLM1-30C05-800 | 720 － 900nm | 760 － 840nm | φ30mm | 5mm | ＞99.8% | 1J/cm2 |
| FLM2-12.7C05-800 | 700 － 940nm | 740 － 860nm | φ12.7mm | 5mm | ＞99.8% | 0.5J/cm2 |
| FLM2-25.4C05-800 | 700 － 940nm | 740 － 860nm | φ25.4mm | 5mm | ＞99.8% | 0.5J/cm2 |
| FLM2-30C05-800 | 700 － 940nm | 740 － 860nm | φ30mm | 5mm | ＞99.8% | 0.5J/cm2 |
*Laser pulse width: 50fs, wavelength: 800nm
Low Dispersion Mirror for High Power Femtosecond Laser
| Part Number | Wavelength Range (S polarization) |
Wavelength Range (P polarization) |
Diameter φD |
Thickness t |
Reflectance | Laser Damage Threshold* |
|---|---|---|---|---|---|---|
| FLMHP-12.7C05-800 | 745 － 855nm | 775 － 825nm | φ12.7mm | 5mm | ＞99% | 2J/cm2 |
| FLMHP-25.4C05-800 | 745 － 855nm | 775 － 825nm | φ25.4mm | 5mm | ＞99% | 2J/cm2 |
| FLMHP-30C05-800 | 745 － 855nm | 775 － 825nm | φ30mm | 5mm | ＞99% | 2J/cm2 |
*Laser pulse width: 65fs, wavelength: 800nm
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