Abstract: In our laboratory there was elaborated the mode of preparation of side-hole optical fibers characterized by high sensitivity to pressure/sensitivity to temperature ratio. This ratio is two magnitude order higher than this obtained for normal SMPM optical fibers. This work presents the quantitative explanation of this advantageous phenomenon. It has presented the mode and the results of calculations of selectivity to pressure in relation to temperature for defined class of side-hole optical fibers. It has resulted that there exist numerous structures of side-hole fibers for which the sensitivity to pressure/sensitivity to temperature ratio is not lower than 1000. Described mode of calculations of selectivity of birefringent optical fibers to pressure in relation to temperature will permit to optimization of these sensor fibers for technological purposes.!7
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