The Air Force Weapons Laboratory Laser Window Test Apparatus.
Final rept. Jun 72-Jun 73,
DAYTON UNIV OHIO RESEARCH INST
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The Laser Window Test Apparatus LWTA evaluates windows and other optical components for high-power infrared laser systems. Specimens are probed with narrow beams from low-power lasers currently CO2 lasers to determine their optical characteristics at incidence angles between 2 and 76 degrees from the normal. The instrument includes a photometer that uses digitized ratiometric detection for measuring single-pass transmittance and single-pass reflectance an interferometer for measuring the optical pathlength through specimens a rastering machine for moving the specimens in relation to the probing beams and a minicomputer controls measurements, performs on-line calibrations, computes running statistical records of the acquired data, and generates an output tape of all data for use by a CDC-6600 computer program which generates the data in its final form and accuracy. Modified author abstract
- Lasers and Masers
- Test Facilities, Equipment and Methods