Methods for laser bonding optical elements to substrates and optical assemblies fabricated by the same
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United States of America
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Feb 18, 2025
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Sep 1, 2022
app pub date -
May 18, 2022
filing date -
May 18, 2022
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Abstract
Methods for laser bonding optical elements to substrates and optical assemblies are disclosed. According to one embodiment, a method of bonding an optical element to a substrate includes disposing at least one optical element onto a surface of the substrate, electrostatically affixing the at least one optical element to the surface of the substrate, and directing a laser beam into the at least one optical element. The laser beam heats an interface between at least one optical element and the substrate to a temperature that is higher than a lowest temperature of the optical element change temperature and the substrate change temperature, thereby forming a bond between at least one optical element and the substrate at a bond area. The laser beam has a fluence that does not modify the substrate at areas of the substrate that are outside of the at least one optical element.
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