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Pellin Broca prisms are constant deviation (90°) dispersing prisms. The input angle is arranged so that total internal reflection occurs at the internal face. This will provide a constant 90° deflection for the beam with dispersion. If the input beam enters the long side of the prism the longer wavelengths will be deviated less.
These prisms provide a convenient way to compensate for group velocity dispersion in ultra-fast lasers or to separate harmonic wavelengths in an incoming laser beam.
 Standard Specifications:
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Optical Material:
Dimension Tolerance:
Clear Aperture:
Angular Tolerance:
Surface Quality:
Wavefront Distortion:
Bevel:
Coating: |
BK7, Fused Silica
+0.0,-0.15mm
>90%
±30 arc minutes
20-10 scratch and dig
lambda/10 at 632.8nm
<0.25mm X 45°
available upon request |
Standard Laser Quality Equilateral Prism
Size A(mm) |
Size B(mm) |
Size H(mm) |
Angular φ |
Angular θ |
Product Number |
BK7 Glass (330-2100 nm) |
11.0 |
20.0 |
12.7 |
79.5° |
60° |
UQT-LPBB0101 |
23.5 |
40.0 |
12.7 |
79.5° |
60° |
UQT-LPBB0102 |
36.0 |
60.0 |
12.7 |
79.5° |
60° |
UQT-LPBB0103 |
UV Grade Fused Silica (200-2500 nm) |
11.0 |
20.0 |
12.7 |
79.5° |
60° |
UQT-LPBF0201 |
23.5 |
40.0 |
12.7 |
79.5° |
60° |
UQT-LPBF0202 |
36.0 |
60.0 |
12.7 |
79.5° |
60° |
UQT-LPBF0203 |
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| Please Contact ultiQuest for other dimensions in prototype and production quantities. |
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| NOTES! |
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Please contact us for OEM with mass production.. |
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Every edge of these prisms is chamfered (beveled) for chipping prevention. The dimensions of these prisms are values not including chamfer. |
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Be sure to wear laser safety goggles when checking optical path and adjusting optical axis. |
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