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The Strength Of Infrared Transmitting Optical Fibers

The strength characteristics of several different chalcogenide fibers, drawn from commercially available materials were investigated. Both core and core/clad fibers were used in the study. Two measuring techniques were employed (bending and tensile) to measure the strength of these fibers. Tensile testing indicated the core glasses to have a strength between 10-20 kpsi (68-135 MPa). Bend test showed these strengths to be between 20-70 kpsi (135-474 MPa). Cladded fibers displayed an additional tensile strength of 4 kpsi (27 MPa) and additional bending strength of 15-30 kpsi (102-234 MPa).