Abstract
This article presents a fiber-optic channel for delivering infrared (IR) radiation within the range from 2.5 to 25.0 μm. It comprises AgBr – TlBr0.46I0.54 uncladded fibers with an extremely small diameter of 90 μm. In the framework of this study, the infrared crystals of AgBr – TlBr0.46I0.54 system and optical fibers based on them, as well as their properties, are described. The stages of the fiber bundle development are also described: the mathematical evaluation of crosstalk is carried out; the computer simulation of the mode field distribution across the bundle is performed. Based on the numerical results, the geometric parameters of the bundle, enabling the efficient transmission of IR radiation, were selected. The fiber bundle with low crosstalk and high spatial resolution was manufactured.
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