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  • Diamond Optics for High-Power Co2 Lasers
Apr 2006
Element Six Technologies NVRequest Info
NETHERLANDS, April 24, 2006 -- Element Six, a supplier of superabrasives and industrial diamond materials, announced that it now has the capability to design and manufacture diamond optics for use in high-powered Co2 lasers. The company's products include output couplers, beamsplitters and exit windows. 

csdiamond.jpgOptics made from CVD (chemical vapor disposition) diamond enable and enhance high-power Co2 laser performance, Element Six said. CVD diamond opens up many new application areas outside of the traditional abrasive uses for synthetic diamonds. Key benefits of diamond optics are improved beam quality, outstanding reliability and an absence of thermal lensing during operation, the company said. Diamond optics have been used in Co2 laser systems for at least seven years and in systems ranging from 2 kW to 8 kW. Diamond optics can be coated with standard antireflective and photoreflective coatings that are widely available on the market, the company said. Uses of CVD diamond include laser optics, cutting tools, surgical blades, windows for high-power microwave generators and heat-spreaders for electronic devices as well as active electronic devices.

According to Element Six, a common problem for windows used in high-power lasers is thermal distortion of the beam caused by thermally induced refractive index gradients as the window is heated by the transmitted beam. This issue is minimized by the use of optical CVD diamond, as the window material has a high thermal conductivity, a low absorption coefficient and a low value of the temperature coefficient of the refractive index. This enables diamond products like exit windows, output couplers, beamsplitters and lenses to be used for high power Co2 lasers, the company said. The extremely high laser damage threshold allows for more compact systems with diamond optics and results in an optic that is virtually maintenance-free because of its long lifetime, according to Element Six.

For more information, visit:; e-mail:

Element Six BV
P.O. Box 119
5430 AC Cuijk
Beversestraat 20
The Netherlands
Phone: +31 485-395-741
Fax: +31 485-395-777
Web site:


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An optical device for dividing a beam into two or more separate beams. A simple beamsplitter may be a very thin sheet of glass inserted in the beam at an angle to divert a portion of the beam in a different direction. A more sophisticated type consists of two right-angle prisms cemented together at their hypotenuse faces. The cemented face of one prism is coated, before cementing, with a metallic or dielectric layer having the desired reflecting properties, both in the percentage of reflection...
1. A piece of glass with plane parallel surfaces used to admit light into an optical system and to exclude dirt and moisture. 2. A particular region of the electromagnetic spectrum that has been singled out for some purpose; for example, the region near 850 nm at which optical fibers operate with lowered losses often is referred to as the first window.
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