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Coated Fibers

Photonics Spectra
Jul 2010
Fiberguide Industries Inc.Request Info
 
Delivering reliable operation in extreme conditions, the metal jacket series of gold- and aluminum-coated optical fibers from Fiberguide Industries Inc. has proved effective in a number of scientific applications, including Raman spectroscopy. They were originally developed for ultrahigh-reliability telecommunications. Their metal coating preserves their mechanical strength and provides resistance against the static fatigue caused by long-term tensile loading. The coated fibers can withstand a wide range of temperatures: aluminum from –269 to 400 °C, and gold from –269 to 700 °C. Gold or aluminum coating can be applied on continuous lengths to a wide variety of multimode, step index, graded index and single-mode fibers. Core to clad ratios of 1:1, 1:2 and 1:4 are available with numerical apertures of 0.12 and 0.26. Nonstandard sizes also can be manufactured upon request.


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GLOSSARY
aperture
An opening or hole through which radiation or matter may pass.
Raman spectroscopy
That branch of spectroscopy concerned with Raman spectra and used to provide a means of studying pure rotational, pure vibrational and rotation-vibration energy changes in the ground level of molecules. Raman spectroscopy is dependent on the collision of incident light quanta with the molecule, inducing the molecule to undergo the change.  
static fatigue
The application of a constant stress to an optical fiber.
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