Prism Coatings

Edmund Optics Inc.Request Info

Edmund Optics Inc. has announced new coating options for its TECHSPEC fused silica wedge prisms, which are designed for a wide variety of beam steering applications using Nd:YAG lasers.

The prisms are specifically designed to provide high transmittance at the first through fourth Nd:YAG harmonics. New laser line coatings provide Rabs <0.25 percent at the design wavelength and offer guaranteed laser induced damage thresholds of 3 J/cm² at 266 nm, 7.5 J/cm² at 355 nm, 10 J/cm² at 532 nm, and 15 J/cm² at 1064 nm, with a 20-ns pulse duration and 20-Hz pulse repetition rate.

To alter a beam path, TECHSPEC fused silica wedge prisms use one prism surface that is orthogonal to the optical axis and one wedged surface. When two Nd:YAG prisms with the same wedge deviation are used, this creates a risley prism pair, which allows for custom beam steering of up to two times the deviation.

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Photonics Spectra
Dec 2018

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Prism Coatings