Generally, multimode tail fibers are orange, operate at a wavelength of 850nm, and have a transmission distance of around 500m. Additionally. These transmission characteristics are of utmost importance when the suitability of optical fibers for communication purposes is investigated. Why do we use the infrared? Because the attenuation of the fiber is much less at those wavelengths. The attenuation of glass optical fiber. When working in the ultraviolet portion of the spectrum, particularly below 300 nm, it is important to use solarization-resistant fibers, as other fibers will become less transmissive over time at those wavelengths (an effect known as solarization). Such fibers are widely used in fiber-optic communication, where they permit transmission over longer distances and at higher bandwidths (data transfer rates) than. Reflectance (which has also been called "back reflection" or optical return loss) of a connection is the amount of light that is reflected back up the fiber toward the source by light reflections off the interface of the polished end surface of the mated connectors and air.
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