High fidelity optical beam dump
AssigneeBAE Systems Information and Electronic Systems Integration Inc.
InventorsPhilip R Staver, Adam J Marcinuk
Life of this patent
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Abstract
A high efficiency optical beam dump having at least two glass plates configured to define an optical path configured to reflect a beam incident the optical path from plate to plate, wherein the plates include anti-reflective coatings and high reflective coatings and wherein the high-efficiency optical beam dump is capable of very high levels of attenuation through repetitive absorption and reflection of an optical beam.
Claims18
A high fidelity optical beam dump, the beam dump comprising:
- at least two glass plates wherein each plate comprises a first side and a second side, wherein said second side opposes said first side of said plate, wherein said plates are configured to define an optical path configured to reflect a beam incident said optical path from said first side of a plate to said first side of a subsequent plate in said optical path, and wherein said first sides are coated with an anti-reflective coating and said second sides are coated with a high-reflective coating.
A high fidelity optical beam dump, the beam dump comprising:
- a housing comprising an aperture therein;
- and
- at least one pair of optically absorptive panels lining opposing sides of an interior of said housing, wherein said absorptive panels are configured to absorb and reflect between each other a beam incident said aperture, thereby trapping and attenuating said beam,
- wherein said absorptive panels are coated with an anti-reflective coating on a portion thereof facing the interior of said housing, and
- wherein said absorptive panels are coated with a high-reflective coating on a portion thereof facing an exterior of said housing.
A high fidelity optical beam dump, the beam dump comprising:
- a housing comprising an aperture therein;
- a beam injection optic configured to redirect a beam incident thereon through said aperture and into an interior of said housing;
- and
- at least one pair of substantially parallel, optically-absorptive glass panels forming an optical path therebetween lining opposing sides of said interior of said housing, said absorptive panels being in optical communication with said aperture and comprising an anti-reflective coating on a portion facing said interior of said housing and further comprising a high-reflective coating on an opposing face thereof,
- wherein said absorptive panels are configured to absorb and reflect between each other a beam incident said aperture, thereby trapping and attenuating said beam and wherein said aperture is tilted at a 45-degree angle with respect to at least one pair of parallel absorbing plates.
Dependencies are inferred from the claim text.