Harmonic Separator
Used to separate or combine YAG (1064nm) and harmonic-converted laser beams (266nm, 355nm, 532nm) by wavelength. Five types with different reflectance wavelengths are available.
Common Specifications
| Material | YHS: BK7 YHSQ：Synthetic fused silica |  |
|---|---|---|
| Surface Flatness | λ/10 | |
| Coating | Front surface: Dielectric multi-layer coating Rear surface: Multi-layer anti-reflection coating |
|
| Incident Angle | 45° | |
| Parallelism | ＜5″ | |
| Surface Quality (Scratch-Dig) | 10 - 5 | |
| Clear Aperture | 90% of the diameter |
| Schematic | Outline Drawing |
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| For Reflected wavelength: 266nm, Transmitted wavelength: 532, 1064nm | ||||||
|---|---|---|---|---|---|---|
| Part Number | Diameter φD | Thickness t | Material | Reflectance at 266nm (The average value of the P-Polarization and the S-Polarizatio) |
Transmittance at 532, 1064nm (The average value of the P-Polarization and the S-Polarizatio) |
Laser Damage Threshold* |
| YHSQ-25.4C05-266 | φ25.4mm | 5mm | Synthetic fused silica | ＞99.2% | ＞95% | 2J/cm2 |
| YHSQ-30C05-266 | φ30mm | 5mm | Synthetic fused silica | ＞99.2% | ＞95% | 2J/cm2 |
| YHSQ-50C08-266 | φ50mm | 8mm | Synthetic fused silica | ＞99.2% | ＞90% | 2J/cm2 |
*Laser pulse width 10ns, repetition frequency 20Hz
| For Reflected wavelength: 266・355nm, Transmitted wavelength: 532, 1064nm | ||||||
|---|---|---|---|---|---|---|
| Part Number | Diameter φD | Thickness t | Material | Reflectance at 266, 355nm (The average value of the P-Polarization and the S-Polarizatio) |
Transmittance at 532, 1064nm (The average value of the P-Polarization and the S-Polarizatio) |
Laser Damage Threshold* |
| YHSQ-25.4C05-266/355 | φ25.4mm | 5mm | Synthetic fused silica | ＞98% | ＞90% | 2J/cm2(@266nm) 5J/cm2(@355nm) |
| YHSQ-30C05-266/355 | φ30mm | 5mm | Synthetic fused silica | ＞98% | ＞90% | 2J/cm2(@266nm) 5J/cm2(@355nm) |
| YHSQ-50C08-266/355 | φ50mm | 8mm | Synthetic fused silica | ＞98% | ＞90% | 2J/cm2(@266nm) 5J/cm2(@355nm) |
*Laser pulse width 10ns, repetition frequency 20Hz
| For Reflected wavelength: 355nm, Transmitted wavelength: 532, 1064nm | ||||||
|---|---|---|---|---|---|---|
| Part Number | Diameter φD | Thickness t | Material | Reflectance at 355nm (The average value of the P-Polarization and the S-Polarization) |
Transmittance at 532・1064nm (The average value of the P-Polarization and the S-Polarization) |
Laser Damage Threshold* |
| YHS-25.4C05-355 | φ25.4mm | 5mm | BK7 | ＞99.5% | ＞85% | 5J/cm2 |
| YHS-30C05-355 | φ30mm | 5mm | BK7 | ＞99.5% | ＞85% | 5J/cm2 |
| YHS-50C08-355 | φ50m | 8mm | BK7 | ＞99.5% | ＞85% | 5J/cm2 |
| YHSQ-25.4C05-355 | φ25.4mm | 5mm | Synthetic fused silica | ＞99.5% | ＞85% | 5J/cm2 |
| YHSQ-30C05-355 | φ30mm | 5mm | Synthetic fused silica | ＞99.5% | ＞85% | 5J/cm2 |
| YHSQ-50C08-355 | φ50m | 8mm | Synthetic fused silica | ＞99.5% | ＞85% | 5J/cm2 |
*Laser pulse width 10ns, repetition frequency 20Hz
| For Reflected wavelength: 532nm, Transmitted wavelength: 1064nm | ||||||
|---|---|---|---|---|---|---|
| Part Number | Diameter φD | Thickness t | Material | Reflectance at 532nm (The average value of the P-Polarization and the S-Polarization) |
Transmittance at 1064nm (The average value of the P-Polarization and the S-Polarization) |
Laser Damage Threshold* |
| YHS-25.4C05-532 | φ25.4mm | 5mm | BK7 | ＞99.5% | ＞95% | 8J/cm2 |
| YHS-30C05-532 | φ30mm | 5mm | BK7 | ＞99.5% | ＞95% | 8J/cm2 |
| YHS-50C08-532 | φ50mm | 8mm | BK7 | ＞99.5% | ＞95% | 8J/cm2 |
| YHSQ-25.4C05-532 | φ25.4mm | 5mm | Synthetic fused silica | ＞99.5% | ＞95% | 8J/cm2 |
| YHSQ-30C05-532 | φ30mm | 5mm | Synthetic fused silica | ＞99.5% | ＞95% | 8J/cm2 |
| YHSQ-50C08-532 | φ50mm | 8mm | Synthetic fused silica | ＞99.5% | ＞95% | 8J/cm2 |
*Laser pulse width 10ns, repetition frequency 20Hz
| For Reflected wavelength: 1064nm, Transmitted wavelength: 532nm | ||||||
|---|---|---|---|---|---|---|
| Part Number | Diameter φD | Thickness t | Material | Reflectance at 1064nm (The average value of the P-Polarization and the S-Polarization) |
Transmittance at 532nm (The average value of the P-Polarization and the S-Polarization) |
Laser Damage Threshold* |
| YHS-25.4C05-1064 | φ25.4mm | 5mm | BK7 | ＞99.5% | ＞90% | 20J/cm2 |
| YHS-30C05-1064 | φ30mm | 5mm | BK7 | ＞99.5% | ＞90% | 20J/cm2 |
| YHS-50C08-1064 | φ50mm | 8mm | BK7 | ＞99.5% | ＞90% | 20J/cm2 |
| YHSQ-25.4C05-1064 | φ25.4mm | 5mm | Synthetic fused silica | ＞99.5% | ＞90% | 20J/cm2 |
| YHSQ-30C05-1064 | φ30mm | 5mm | Synthetic fused silica | ＞99.5% | ＞90% | 20J/cm2 |
| YHSQ-50C08-1064 | φ50mm | 8mm | Synthetic fused silica | ＞99.5% | ＞90% | 20J/cm2 |
*Laser pulse width 10ns, repetition frequency 20Hz
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