Fiber bundle

In spectroscopy, fiber optic cables are part of a modern spectrometer’s equipment. They establish the connection between the spectrometer, the sources of illumination light for measurement and evaluation technology. In spectroscopy, special fibers coated with polyimide are used for fiber bundles. This polyimide layer is only a few microns thick and must not be stripped off during production of a fiber bundle, because it increases the distance between the fibers within the bundle only slightly. At the same time it stabilizes the fiber. Apart from the SMA connectors FC/PC connectors are also used. Inside the plugs, several fibers are bonded to form a fiber bundle, sometimes highly temperature-resistant, with special fiber arrangements as a gap or matrix to suit the receiver.

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