4.7 Article

Design of laser beam dump with high laser-induced-damage threshold

Journal

OPTICS AND LASER TECHNOLOGY
Volume 146, Issue -, Pages -

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2021.107561

Keywords

Laser beam dump; Optical absorption material; Laser damage; High power laser

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To address the issue of beam dump damage at high output energy, the initial laser-induced damage threshold of a new optical absorption material was tested. A new type of laser beam dump was designed based on this material using geometrical optics and light-field distribution analysis.
Laser beam dumps are necessary for laser systems designed to deliver high power or high energy to achieve effective control of stray light. However, the energy density of the stray light destroys the absorption glass of the beam dump with an increase in the output energy. To solve this problem, the initial laser-induced-damage threshold (LIDT) of a new optical absorption material was tested. A new type of laser beam dump was designed with this new optical material based on geometrical optics and light-field distribution analysis.

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