POINT-TO-POINT OPTICAL FIBRE LINK

摘要

Point-to-point link (10) for the transmission of digital signals comprising two opto-electronic conversion apparatuses (12, 14) and an optical cable comprising at least one optical fiber (16) having two terminal portions (1), each opto-electronic conversion apparatus (12, 14) comprising an opto-electronic device (3) optically coupled to a respective terminal portion (1) between said two terminal portions (1) of said at least one optical fiber, wherein at least one of the two opto-electronic conversion apparatuses (12; 14) is adapted to keep the respective terminal portion (1) of the optical fiber (16) in bent position with a bending radius R, where 1.5mm= R= 2.5mm and to keep the respective opto-electronic device (3) optically coupled to said bent terminal portion (1) in order to allow the transmission of said digital signals between said optical fiber (16) and said at least one of the two opto-electronic conversion apparatuses (12; 14); and at least the bent terminal portion (1) of said at least one optical fiber (16) is such as to satisfy the following relationship r/R <0.07*n/ (35+n), where n is the stress corrosion susceptibility factor and r is the radius of the cladding of the optical fiber.