Laser measurement apparatus having a removable and replaceable beam dump

Abstract

The present application discloses various embodiments of an apparatus configured to measure characteristics of a beam of laser energy. In one embodiment, the apparatus includes a housing having a first compartment and a second compartment formed therein. Optical modules having optical sensors configured to measure characteristics of the beam of laser energy are mounted in the first compartment. A removable and replaceable beam dump configured to absorb most of the beam is positioned in the second compartment. The housing may include a housing member positioned between the first and second compartments, to reduce the transfer of thermal energy between them. The removability/replaceability of the beam dump enables operation of the apparatus without active cooling of the beam dump assembly, simplifying the apparatus and protecting the optical sensors in the first compartment.

Dependencies are inferred from the claim text.