Rapid, automated, quality control of diffraction grating efficiency

Mark R. Fisher; Travis C. Burt

doi:10.1117/12.2275526

23 August 2017 Rapid, automated, quality control of diffraction grating efficiency

Mark R. Fisher, Travis C. Burt

Proceedings Volume 10373, Applied Optical Metrology II; 103730O (2017) https://doi.org/10.1117/12.2275526
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

A diffraction grating is found at the heart of every modern spectrophotometer and yet, despite being used for over 60 years, a practical and efficient characterization tool has proven to be elusive. Part of the challenge can be attributed to the unique angular dependent geometry, or off axis dispersion, of gratings. Here we demonstrate automated grating efficiency measurements of four reflection gratings (300, 1200, 1800 and 3600 grooves per mm). Total measurement time was less than 2 hrs at a maximum of 161 wavelengths per grating. This approach can reduce test times or assist expand quality assurance, or design verification, programs. Automated measurements are performed in hours demonstrating efficiency and ease-of-use advantages when compared to equivalent manually operated systems.

Citation Download Citation

Mark R. Fisher and Travis C. Burt "Rapid, automated, quality control of diffraction grating efficiency", Proc. SPIE 10373, Applied Optical Metrology II, 103730O (23 August 2017); https://doi.org/10.1117/12.2275526

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