Backscatter reductant anamorphic beam sampler
OwnerPerry Palumboinventor
Life of this patent
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Abstract
Embodiments of the present invention include a backscatter reductant anamorphic beam sampler. The beam sampler can be implemented to measure a power of a reference beam generated by an electromagnetic radiation source in proportion to a power of a working beam. The beam sampler can provide astigmatic correction to a divergence of the working beam along one axis orthogonal to a direction of propagation. The beam sampler can further be implemented to prevent backscatter from impinging upon a photodetector of the beam sampler resulting in a reduction of error and instability in measurements taken by the beam sampler.
Claims23
A beam sampler comprising:
- a right angle prism, the right angle prism being defined by:
- an opposite surface;
- an adjacent surface;
- and
- a hypotenuse surface;
- a plano-convex lens coupled to the opposite surface of the right angle prism, the plano-convex lens including an absorptive coating;
- a photodetector coupled to the adjacent surface of the right angle prism;
- and
- an electromagnetic radiation source.
(canceled)
A backscatter reductant anamorphic beam sampler comprising:
- a right angle prism including an opposite surface, an adjacent surface, and a hypotenuse surface;
- a plano-convex lens coupled to the opposite surface of the right angle prism, the plano-convex lens including an annular convex absorptive coating;
- a photodetector coupled to the adjacent surface of the right angle prism;
- and
- an electromagnetic radiation source.
(canceled)
23-30. (canceled)
Dependencies are inferred from the claim text.