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EXPERIMENTAL INVESTIGATION OF WINDING DIAMETER EFFECT ON OPTICAL PROPERTIES OF HI-BI FIBER WITH TIN COATING

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The paper presents experimentally obtained dependences of optical losses and h-parameter of the birefringent optical fiber with tin coating on a winding diameter. The optical losses were measured by insertion loss method, and h-parameter was measured by orthogonal polarizer method. The winding diameter varied from 5 mm to 35 mm. A minimal acceptable winding diameter of 30 mm was determined for this fiber used as a reference arm in interferometric sensor wherein optical losses are equal to 0.07 dB/m, and h-parameter is equal to 50×10-4.

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