Abstract: The invention relates to an apparatus (1) for tensile testing of an optical fiber (11). In order to efficiently and simply test the optical fiber, the apparatus comprises a dual pulley (6) with a first circumferential surface (7) having a first diameter (D1) and with a second circumferential surface (8) having a second diameter (D2) which is larger than the first diameter (D1). A fiber inlet (10) which is delimited by the first circumferential surface (7) and the first drive belt section (2) contacts the first circumferential surface (7). A fiber outlet (13) which is delimited by the second circumferential surface (8) and the second drive belt section (3) contacts the second circumferential surface (8), and a guide (12) passes the optical fiber (11) from the fiber inlet (10) to the fiber outlet (13).

Abstract: The invention relates to a device for processing optical fibers, comprising: a pair of pulleys (1, 2) arranged to receive in a space between them a first optical fiber element (4), and a drive mechanism. In order to obtain a device capable of efficiently and reliably processing optical fibers the first pulley (1) in the pair of pulleys comprises a circumferential first groove (5) in a circumferential contact surface (6) for receiving the first optical fiber element (4), the first groove (5) being shaped to accommodate the first optical fiber element (4) such that less than half of the cross sectional surface area of the first optical fiber element (4) protrudes out of the first groove (5), and a second pulley (2) in the pair of pulleys comprises a circumferential contact surface (7) contacting a surface of the first optical fiber element (4).

Abstract: The invention relates to an apparatus (1) for tensile testing of an optical fiber (11). In order to efficiently and simply test the optical fiber, the the apparatus comprises a dual pulley (6) with a first circumferential surface (7) having a first diameter (D1) and with a second circumferential surface (8) having a second diameter (D2) which is larger than the first diameter (D1). A fiber inlet (10) which is delimited by the first circumferential surface (7) and the first drive belt section (2) contacts the first circumferential surface (7). A fiber outlet (13) which is delimited by the second circumferential surface (8) and the second drive belt section (3) contacts the second circumferential surface (8), and a guide (12) passes the optical fiber (11) from the fiber inlet (10) to the fiber outlet (13).

Abstract: The invention relates to a device for processing optical fibers, comprising: a pair of pulleys (1, 2) arranged to receive in a space between them a first optical fiber element (4), and a drive mechanism. In order to obtain a device capable of efficiently and reliably processing optical fibers the first pulley (1) in the pair of pulleys comprises a circumferential first groove (5) in a circumferential contact surface (6) for receiving the first optical fiber element (4), the first groove (5) being shaped to accommodate the first optical fiber element (4) such that less than half of the cross sectional surface area of the first optical fiber element (4) protrudes out of the first groove (5) , and a second pulley (2) in the pair of pulleys comprises a circumferential contact surface (7) contacting a surface of the first optical fiber element (4).