Optokon offers Mode Conditioning Patchcord for long wave (-LX ) multimode applications of Gigabit Ethernet. This patchcord consist of customer designed connectors on each end of cable assembly with a singlemode fiber offset to a multimode fiber connection point in between.
This patch cord optimizes the singlemode launch nature of the -LX (1300 nm) transceiver modules used for Gigabit Ethernet that must operate over both singlemode and multimode fibers. A single-mode laser launch into the center of a multimode fiber can generate multiple signals that confuse the receiver at the other end of the fiber. These multiple signals, caused by Differential Mode Delay (DMD) effects, limit the system distance lengths for operating Gigabit Ethernet. Optokon Mode Conditioning Patchcord eliminates these multiple signals by aligning the single-mode launch away from the center of a multimode fiber core. This offset launch creates a transmitted signal that is similar to typical multimode light emitting diode (LED) launches.