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Letters to the Editor

Photonics Spectra
Nov 2011
Corning Still Makes Calcium Fluoride

In Lynn Savage’s article “Property Management: A Review of Optical Materials” (September 2011), Brandon Light of Optimax Systems Inc. was quoted as saying, “For example, New York-based Corning Inc. stopped producing calcium fluoride glass …”

Although worldwide applications and wavelengths of interest have changed over the years, as has our product mix, Corning has neither discontinued manufacture of calcium fluoride crystal since its 1999 acquisition of Optovac Inc., nor are there any plans to exit this business. Quite to the contrary, we have been actively investing in our crystals programs and are enhancing our offerings through the development of an additional calcium fluoride grade aimed at improving lifetime in high-fluence laser optics applications.

Keith Donohue
Commercial Technology Manager, Laser Optics
Corning Inc.

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The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
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