Jul 2004Meller Optics Inc.Request Info
Sapphire wave plates that extend the polarization control of medical and industrial lasers into the infrared have been unveiled by Meller Optics Inc. Available in 10- to 30-mm-diameter sizes, in λ/2 and λ/4 and in multiple- and zero-order configurations, they can be used with lasers that transmit from 2.8 to 4.7 µm. They feature 10-5 scratch-dig surface quality and ≤1 arc sec parallelism and come with v-coat or broadband AR coatings at ≤0.25% R per surface. They provide λ/4 and λ/2 retardation, with a tolerance of >l/300 at 0.632 µm, >/400 at 1.06 µm and >/1000 at 2.94 µm.