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Multi-Order Waveplates
Introduction:
Wave retarders are used widely in applications like rotating polarization, transforming between linear and circular polarization. CASTECH offers quarter- and half-wave plates in a variaty of options including Multiple Order Waveplates, Cemented Zero-Order Waveplates, Airspaced Zero-Order Waveplates, True Zero-Order Waveplates, Dual Wavelength waveplates. CASTECH’s waveplates feature high precision, high damage threshold level and more importantly, we have the capacity to design and customize specific ideal waveplates to fit your exact application.
Features:
- Material: Crystal Quartz, MgF2
- Custom dimension and shapes
- Diameter from 5 to 100 mm
- Standard and custom coating options available
- High laser damage threshold
- Mounted and unmounted waveplates are available
Specifications：
| Material |
Crystal Quartz |
| Diameter Tolerance | +0/-0.25mm |
| Clear Aperture | ≥ central 90% of diameter |
| Retardance Accuracy | ＜λ/300 |
| Surface Quality | 20/10 |
| Wavefront Distortion | λ/10 @632.8nm over the clear aperture |
| Parallelism | ≤3″ |
| Coating | R＜0.25% |
| Damage Threshold | 2MW/cm2,2J/cm2，10ns |
• Wide Temperature Bandwidth
• CASTECH’s standard coatings are available
• Custom designs for other sizes and coatings are also vailable upon request.
Single Wavelength Waveplates
Order Information：
|
Half Waveplate |
Quarter Waveplate |
| WPL-127-1/2-λ | WPL-127-1/4-λ |
| WPL-150-1/2-λ | WPL-150-1/4-λ |
| WPL-200-1/2-λ | WPL-200-1/4-λ |
| WPL-254-1/2-λ | WPL-254-1/4-λ |
Standard Wavelength (λ)：
| Wavelength | |||||
| 248nm | 413nm | 514.5nm | 632.8nm | 800nm | 1064nm |
| 266nm | 441.6nm | 532nm | 647.1nm | 830nm | 1300nm |
| 308nm | 457.9nm | 543.5nm | 676.4nm | 850nm | 1315nm |
| 351nm | 488nm | 594nm | 694.3nm | 905nm | 1320nm |
| 354.7nm | 510.5nm | 611.9nm | 780nm | 1050nm | 1550nm |
Dual Wavelength Waveplates
Dual wavelength waveplate is widely used on Third Harmonic Generation (THG) system. When you need a NLO crystal for type II SHG (o+e→e), and a NLO crystal for type II THG (o+e→e), the out put polarization from SHG can not be used for THG. So you must turn the polarization to get two perpendicular polarization for type II THG. Dual wavelength waveplate works like a polarizing rotator, it can rotate the polarization of one beam and remain another beam's polarization. Also the dual wavelength waveplate can be applied to following systems：
• Type II SHG + Type II THG
• Type II SHG + Type I THG
• Type I SHG + Type I THG
For example: we use KTP as SHG type II and LBO as THG type II, but the polarization of output beam from KTP is not optimized for THG type II. When we use a dual wavelength waveplate as drawing, it can change the 532nm beam to a special angle polarization but not change 1064nm beam at all.
Specifications：
| Material | Crystal Quartz |
| Diameter Tolerance | +0/-0.25mm |
| Clear Aperture | ≥ central 90% of diameter |
| Retardance Accuracy | ＜λ/100 |
| Surface Quality | 20/10 |
| Wavefront Distortion | λ/10 @ 632.8nm over the clear aperture |
| Parallelism | ≤3″ |
| Coating | Laser Line V AR Coating R<0.25%< span=""> |
| Damage Threshold | 2MW/cm2,2J/cm2，10ns |
Order Information：
Standard Retardation：
| Wavelength 1-Wavelength2 | W1064-W532(nm) | W1064-W532(nm) | W532-W266(nm) | W532-W355(nm) |
| Retardation 1-Retardation2 | λ-λ/2 | λ/2-λ | λ/4-λ/2 | λ/2-λ/4 |
Note：
• Custom designs for other sizes ,coatings and holders are also available upon request.
• CASTECH's standard coatings are available upon request.
Products
-
Multi-Order Waveplates
- Wave retarders are used widely in applications like rotating polarization, transforming between linear and circular polarization. CASTECH offers quarter- and half-wave plates in a variaty of options.
-
Introduction:
Wave retarders are used widely in applications like rotating polarization, transforming between linear and circular polarization. CASTECH offers quarter- and half-wave plates in a variaty of options including Multiple Order Waveplates, Cemented Zero-Order Waveplates, Airspaced Zero-Order Waveplates, True Zero-Order Waveplates, Dual Wavelength waveplates. CASTECH’s waveplates feature high precision, high damage threshold level and more importantly, we have the capacity to design and customize specific ideal waveplates to fit your exact application.
Features:
- Material: Crystal Quartz, MgF2
- Custom dimension and shapes
- Diameter from 5 to 100 mm
- Standard and custom coating options available
- High laser damage threshold
- Mounted and unmounted waveplates are available
Specifications：
| Material |
Crystal Quartz |
| Diameter Tolerance | +0/-0.25mm |
| Clear Aperture | ≥ central 90% of diameter |
| Retardance Accuracy | ＜λ/300 |
| Surface Quality | 20/10 |
| Wavefront Distortion | λ/10 @632.8nm over the clear aperture |
| Parallelism | ≤3″ |
| Coating | R＜0.25% |
| Damage Threshold | 2MW/cm2,2J/cm2，10ns |
• Wide Temperature Bandwidth
• CASTECH’s standard coatings are available
• Custom designs for other sizes and coatings are also vailable upon request.
Single Wavelength Waveplates
Order Information：
|
Half Waveplate |
Quarter Waveplate |
| WPL-127-1/2-λ | WPL-127-1/4-λ |
| WPL-150-1/2-λ | WPL-150-1/4-λ |
| WPL-200-1/2-λ | WPL-200-1/4-λ |
| WPL-254-1/2-λ | WPL-254-1/4-λ |
Standard Wavelength (λ)：
| Wavelength | |||||
| 248nm | 413nm | 514.5nm | 632.8nm | 800nm | 1064nm |
| 266nm | 441.6nm | 532nm | 647.1nm | 830nm | 1300nm |
| 308nm | 457.9nm | 543.5nm | 676.4nm | 850nm | 1315nm |
| 351nm | 488nm | 594nm | 694.3nm | 905nm | 1320nm |
| 354.7nm | 510.5nm | 611.9nm | 780nm | 1050nm | 1550nm |
Dual Wavelength Waveplates
Dual wavelength waveplate is widely used on Third Harmonic Generation (THG) system. When you need a NLO crystal for type II SHG (o+e→e), and a NLO crystal for type II THG (o+e→e), the out put polarization from SHG can not be used for THG. So you must turn the polarization to get two perpendicular polarization for type II THG. Dual wavelength waveplate works like a polarizing rotator, it can rotate the polarization of one beam and remain another beam's polarization. Also the dual wavelength waveplate can be applied to following systems：
• Type II SHG + Type II THG
• Type II SHG + Type I THG
• Type I SHG + Type I THG
For example: we use KTP as SHG type II and LBO as THG type II, but the polarization of output beam from KTP is not optimized for THG type II. When we use a dual wavelength waveplate as drawing, it can change the 532nm beam to a special angle polarization but not change 1064nm beam at all.
Specifications：
| Material | Crystal Quartz |
| Diameter Tolerance | +0/-0.25mm |
| Clear Aperture | ≥ central 90% of diameter |
| Retardance Accuracy | ＜λ/100 |
| Surface Quality | 20/10 |
| Wavefront Distortion | λ/10 @ 632.8nm over the clear aperture |
| Parallelism | ≤3″ |
| Coating | Laser Line V AR Coating R<0.25%< span=""> |
| Damage Threshold | 2MW/cm2,2J/cm2，10ns |
Order Information：
Standard Retardation：
| Wavelength 1-Wavelength2 | W1064-W532(nm) | W1064-W532(nm) | W532-W266(nm) | W532-W355(nm) |
| Retardation 1-Retardation2 | λ-λ/2 | λ/2-λ | λ/4-λ/2 | λ/2-λ/4 |
Note：
• Custom designs for other sizes ,coatings and holders are also available upon request.
• CASTECH's standard coatings are available upon request.
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