A scanning reflection and transmission photometer for large high power laser optics

Details A scanning reflection and transmission photometer for large high power laser optics A scanning reflection and transmission photometer for large high power laser optics

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981osa..work....9t&link_type=abstract

Presented at the OSA Workshop on Optical Fabrication, Anaheim, Calif., 9-11 Dec. 1981

Computer Science

Coatings, High Power Lasers, Lenses, Optical Equipment, Optical Measurement, Photometers, Data Processing, Laser Fusion, Reflectance, Transmittance

Scientific paper

The Nova OTR (overall transmittance/reflectance) photometer operates at 1.064 nm, 528 nm, or 351 nm in order to closely simulate 1st, 2nd and 3rd harmonic frequencies of the Nova fusion laser. The optic is scanned on a large XY carriage while reflectance or transmittance data is taken on-the-fly. The system is controlled by an LSI 11/23 computer which processes the data and prints out the results in hard copy form, or stores data on a memory disk. The detectors are temperature controlled to within +/- 0.01 C which aids in achieving an absolute accuracy of +/- 0.1 to +/- 0.5% of full scale, depending on the operating point. The photometer is capable of scanning a large optic (1 meter in diameter) in 20 to 30 minutes.

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