Abstract

A device capable of measuring optical coating performance over a range of angles was required for the completion of the University of Rochester's Omega Upgrade laser system. The laser system employs several different types of optical coatings including antireflection, high reflectors, beamsplitters, and polarizers. Coating evaluation needed to be accurate to ±0.1%, but flexible enough to accomodate all different sizes and shapes of optics. The current configuration includes three laser sources; Argon, HeNe, and YEOLF. When used in transmission mode, the instrument is capable of measuring contrast ratios (Tp/Ts) over a four decade range.

© 1995 Optical Society of America