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Optoelectronics & Communications

Glass optical fibers


SCHOTT AG announces the launch of PURAVISTM high-purity glass optical fibers. This new product offers superior properties over existing glass fibers, which make PURAVISTM ideal for medical and industrial use. These new glass optical fibers were on display at the SPIE Photonics West 2012 trade show in San Francisco, CA.

PURAVISTM offers outstanding transmission of white light - an increase of up to 10% - achieved by using well-selected raw materials. Due to the lower color shift, illuminated objects retain their natural color, even if the fibers are used in long light guides, making PURAVISTM ideally-suited for medical applications such as endoscopy and surgical microscopy. As a result of the improved numerical aperture by a 5° full angle, the light guide captures more light from the very start. The low attenuation in the visible range results in even higher light output at the end of the light guide, which allows for smaller diameter of light guides with same output and thus easier installation.

PURAVISTM also features superior longevity, achieved by improved chemical stability and low solarization, which is particularly important for medical reprocessing like autoclaving or cleaning, but also for outdoor applications. Transmission loss of PURAVISTM after 100 autoclaving cycles has been greatly reduced - by up to 70% compared to previous fibers.

In addition to these benefits, PURAVISTM is lead-free and the entirely newly-developed manufacturing process is environmentally friendly, avoiding the use of arsenic or antimony, two elements commonly used in glass refining.