622 Mbit/s data transmission using 650 nm resonant-cavity light-emitting diodes and plastic optical fiber

摘要

Resonant-cavity light-emitting diodes (RCLED) operating at polymethylethacrylate (PMMA) plastic optical fiber (POF) transmission loss-window of 650 nm are demonstrated. The structures containing three GaInP quantum wells were grown by solid-source MBE on n~+-GaAs wafers. Devices with different output apertures were fabricated in order to find the trade-off between the maximum output power and high-speed operation. Uisng devces with a diameter of 84 mum a wide-open eye diagram was observed after transmission of 2~31-1 PRBS at 622 Mbit/s over 1 m PMMA-POF. Transmission experiments and small signal analysis reveal that the maximum transmission rate is limited y the large aperture step-index POF rather than the modulation bandwidth of the RCLED. Finally, we analyze the dependence of the system bandwidth on the light launching condition into POF and show that RECLED with narrowed farfield relaxes the dispersion limitation of the POF.