Air Gap Type Waveplate / WPQG
Air spaced two piece waveplates are suitable for use with high-energy lasers (no optical contact occurs). For Nd-YAG lasers and Yb lasers, there is a lineup from fundamental to 4th harmonic.
Common Specifications
| Material | Crystalline quartz |  |
|---|---|---|
| Material of Frame | Aluminum (Finishing: Black Anodized) | |
| Clear Aperture | 15×15mm | |
| Surface Flatness | λ/10 | |
| Angular Deviation of Beam | ＜5″ | |
| Coating | Anti-reflection Coating on both side (Total 4 surfaces) | |
| Transmittance | ＞98% | |
| Surface Quality (Scratch-Dig) | 20 － 10 |
| Schematic λ/2 | Schematic λ/4 |
|---|---|
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| Outline Drawing WPQG-25.4C | Outline Drawing WPQG |
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| λ/2 | |||||||
|---|---|---|---|---|---|---|---|
| Part Number | Diameter | Wavelength Range | Clear Aperture | Theoretical Retardation | Retardation Tolerance | Laser Damage Threshold※ | |
| WPQG-25.4C-2570-2M | φ25.4mm | 257nm | φ15mm | 128.5nm | - | 1.4Jcm2 | |
| WPQG-25.4C-3430-2M | φ25.4mm | 343nm | φ15mm | 171.5nm | - | 4Jcm2 | |
| WPQG-25.4C-5150-2M | φ25.4mm | 515nm | φ15mm | 257.5nm | - | 4Jcm2 | |
| WPQG-25.4C-10300-2M | φ25.4mm | 1030nm | φ15mm | 515nm | - | 10cm2 | |
| WPQG-2570-2M | φ30mm | 257nm | □15mm | 128.5nm | - | 1.4cm2 | |
| WPQG-2660-2M | φ30mm | 266nm | □15mm | 133nm | ＜λ/50 | 1.4cm2 | |
| WPQG-3430-2M | φ30mm | 343nm | □15mm | 171.5nm | - | 4cm2 | |
| WPQG-3550-2M | φ30mm | 355nm | □15mm | 177.5nm | ＜λ/50 | 4cm2 | |
| WPQG-5150-2M | φ30mm | 515nm | □15mm | 257.5nm | - | 4cm2 | |
| WPQG-5320-2M | φ30mm | 532nm | □15mm | 266nm | λ/100 － λ/200 | 4cm2 | |
| WPQG-10300-2M | φ30mm | 1030nm | □15mm | 515nm | - | 10cm2 | |
| WPQG-10640-2M | φ30mm | 1064nm | □15mm | 532nm | λ/200 － λ/500 | 7cm2 | |
*Laser pulse width 10ns, repetition frequency 20Hz
| λ/4 | |||||||
|---|---|---|---|---|---|---|---|
| Part Number | Diameter | Wavelength Range | Clear Aperture | Theoretical Retardation | Retardation Tolerance | Laser Damage Threshold* | |
| WPQG-25.4C-2570-4M | φ25.4mm | 257nm | φ15mm | 64.4nm | - | 1.4Jcm2 | |
| WPQG-25.4C-3430-4M | φ25.4mm | 343nm | φ15mm | 128.5nm | - | 4Jcm2 | |
| WPQG-25.4C-5150-4M | φ25.4mm | 515nm | φ15mm | 171.5nm | - | 4Jcm2 | |
| WPQG-25.4C-10300-4M | φ25.4mm | 1030nm | φ15mm | 257.5nm | - | 10Jcm2 | |
| WPQG-2570-4M | φ30mm | 257nm | □15mm | 64.4nm | - | 1.4Jcm2 | |
| WPQG-2660-4M | φ30mm | 266nm | □15mm | 66.5nm | ＜λ/50 | 1.4Jcm2 | |
| WPQG-3430-4M | φ30mm | 343nm | □15mm | 128.5nm | - | 4Jcm2 | |
| WPQG-3550-4M | φ30mm | 355nm | □15mm | 88.8nm | ＜λ/50 | 4Jcm2 | |
| WPQG-5150-4M | φ30mm | 515nm | □15mm | 171.5nm | - | 4Jcm2 | |
| WPQG-5320-4M | φ30mm | 532nm | □15mm | 133.0nm | λ/100 － λ/200 | 4Jcm2 | |
| WPQG-10300-4M | φ30mm | 1030nm | □15mm | 257.5nm | - | 10Jcm2 | |
| WPQG-10640-4M | φ30mm | 1064nm | □15mm | 266.0nm | λ/200 － λ/500 | 7Jcm2 | |
*Laser pulse width 10ns, repetition frequency 20Hz
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