Point-to-point link for the transmission of digital signals includes two
opto-electronic conversion apparatuses and an optical cable including at
least one optical fiber having two terminal portions, each
opto-electronic conversion apparatus including an opto-electronic device
optically coupled to a respective terminal portion between the two
terminal portions of the at least one optical fiber, wherein at least one
of the two opto-electronic conversion apparatuses is adapted to keep the
respective terminal portion of the optical fiber in bent position with a
bending radius R, where 1.5 mm.ltoreq.R.ltoreq.2.5 mm, and to keep the
respective opto-electronic device optically coupled to the bent terminal
portion in order to allow the transmission of the digital signals between
the optical fiber and the at least one of the two opto-electronic
conversion apparatuses; and at least the bent terminal portion of the at
least one optical fiber 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.