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Dual Wavelength waveplates are designed to be used in dual wavelength setups and operate as a quarter-wave plate at one wavelength and as a half-wave plate at the second wavelength. One common application is separation of different wavelengths with a polarizing beamsplitter by rotating the polarization of one wavelength by 90°, and leaving the other unchanged. This frequently occurs in nonlinear doubling or tripling laser sources such as Nd:YAG (1064/532/355/266nm).
Features:
- Operates as λ/4@λ1 & as λ/2@λ2
- High Damage Threshold
- Narrow bandwidth and temperature range
- Other wavelength and retardation combinations available
Dual Wavelength waveplates Specifications:
|
Material |
Crystal Quartz, laser quality |
|
Construction |
Single plate |
|
Operating Wavelengths |
532 nm & 1064 nm |
|
Retardance Tolerance |
< λ/100 at both wavelengths at 23° C |
|
Dimension Tolerance |
+0.0/-0.2mm |
|
Clear Aperture |
> 90% central |
|
Wavefront Distortion |
λ/8 @632.8nm |
|
Parallelism |
< 1 arc second |
|
Surface Quality |
20-10 scratch-dig |
|
AR Coating |
R < 0.5% at both wavelengths |
|
Damage Threshold |
> 5J/cm2, 20ns, 20Hz@ 1064 nm |
Ordering Information:
Description: Dual Wavelength WavePlate
Part Number: WPD–Retardance–Dimension–Coating–Mount
Retardance: λ/2@1064nm & λ@532nm, λ@1064nm & λ/2@532nm, λ/2@1064nm & λ/4@532nm,
λ/4@1064nm & λ/2@532nm, λ/4@1064nm & λ@532nm
Dimension: Φ10.0mm, Φ12.7mm, Φ15.0mm, Φ20.0mm, Φ25.4mm, or Others
Coating: AR coating or Uncoated
Mount: Φ25.4mm, Φ30.0mm or Unmounted