The optical interconnect cable (module) BE-SMF Beam Expander contains two patchcords, which are equipped with FC/PC connectors on one side, containing two opposing beam expanders for single-mode optical fibers. The transmission system includes an optical interconnect module (two jumpers) containing two FC/PC connectors (at the connection point), in which the same type of GRIN lens is integrated.

The optical interconnect module contains a one-meter-long section of single-mode optical fiber, to which a fiber GRIN lens (beam expander) is spliced.

Patch cables with FC/PC connectors operate on the principle of contact expansion technology of the mode field MDF (Mode Field Diameter), which achieves a reduction in power density at the connector interface. Lower energy density eliminates damage to the surface of the optical fiber, especially due to micrometric impurities, which heat up strongly at higher optical signal levels.