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Non-Polarizing Plate BeamSplitter, Insensitive To Input Beam Polarization
Overview:
Non-Polarizing Plate Beamsplitters are coated with dielectric layers to increase system performance while maintaining high laser damage thresholds and the polarization state of the input beam. For example, in the case of a 50/50 non-polarizing beamsplitter, the transmitted P and S polarization states and the reflected P and S polarization states are split at the design ratio.
These Non-polarizing Plate beamsplitters are ideal for use in demanding laser applications where polarization control is critical.
General Specifications of Non-polarizing Plate Beamsplitter:
| Material |
BK7, UV Fused Silica |
| Dimension Tolerance |
+0/-0.2mm |
| Thickeness Tolerance |
±0.2mm |
| Clear Aperture |
>90% |
| Flatness |
λ/4@632.8nm |
| Parallelism |
<1 arc minutes |
| Surface Quality |
60/40 Scratch and Dig |
| Coating |
Non-polarizing beamsplitting Coating on front surface
AR coating on back surface |
| T/R Tolerance |
±5% |
| Polarization |
|Rs-Rp|<5%
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| Damage Threshold |
>3J/cm2, 20ns, 20Hz, @1064nm |
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Standard Products of Non-polarizing Plate Beamsplitter:
| Part No. |
Material |
Dimension
(mm) |
Thickness
(mm) |
T/R
(%) |
Wavelength
(nm) |
AOI
(°) |
| NPBS12-355-45 |
UVFS |
12.7 |
3.0 |
50/50 |
355 |
45 |
| NPBS25-355-45 |
UVFS |
25.4 |
3.0 |
50/50 |
355 |
45 |
| NPBS50-355-45 |
UVFS |
50.8 |
3.0 |
50/50 |
355 |
45 |
| NPBS12-532-45 |
N-BK7 |
12.7 |
3.0 |
50/50 |
532 |
45 |
| NPBS25-532-45 |
N-BK7 |
25.4 |
3.0 |
50/50 |
532 |
45 |
| NPBS50-532-45 |
N-BK7 |
50.8 |
3.0 |
50/50 |
532 |
45 |
| NPBS12-633-45 |
N-BK7 |
12.7 |
3.0 |
50/50 |
633 |
45 |
| NPBS25-633-45 |
N-BK7 |
25.4 |
3.0 |
50/50 |
633 |
45 |
| NPBS50-633-45 |
N-BK7 |
50.8 |
3.0 |
50/50 |
633 |
45 |
| NPBS12-780-45 |
N-BK7 |
12.7 |
3.0 |
50/50 |
780 |
45 |
| NPBS25-780-45 |
N-BK7 |
25.4 |
3.0 |
50/50 |
780 |
45 |
| NPBS50-780-45 |
N-BK7 |
50.8 |
3.0 |
50/50 |
780 |
45 |
| NPBS12-1064-45 |
N-BK7 |
12.7 |
3.0 |
50/50 |
1064 |
45 |
| NPBS25-1064-45 |
N-BK7 |
25.4 |
3.0 |
50/50 |
1064 |
45 |
| NPBS50-1064-45 |
N-BK7 |
50.8 |
3.0 |
50/50 |
1064 |
45 |
Coating Graphs of Non-polarizing Plate Beamsplitter:
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355nm 50:50 Non-polarizing Plate Beamsplitter
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532nm 50:50 Non-polarizing Plate Beamsplitter
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633nm 50:50 Non-polarizing Plate Beamsplitter
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780nm 50:50 Non-polarizing Plate Beamsplitter
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1064nm 50:50 Non-polarizing Plate Beamsplitter
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