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OPTICAL FIBER

Photonics Spectra
May 2005
NufernRequest Info
 
Nufern has developed the patent-pending PumpGuard optical fiber for use in applications that include pump legs for couplers and combiners, or for double-clad fibers, multimode laser beam delivery fiber and laser pump diode pigtails. Available in industry-standard 105/125 µm, the series will be expanded to cover additional high-power delivery fibers up to 400/480 µm, with numerical apertures ranging from 0.12 to 0.22. PumpGuard redistributes the reverse-propagating, high-brightness light, a cause of failure in multimode diodes that are used to pump high-beam-quality fiber lasers and amplifiers.


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GLOSSARY
optical fiber
A thin filament of drawn or extruded glass or plastic having a central core and a cladding of lower index material to promote total internal reflection (TIR). It may be used singly to transmit pulsed optical signals (communications fiber) or in bundles to transmit light or images.  
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