In this paper we review the recent development of resonant cavity light emitting diodes (RC-LEDs), intended for short-haul polymer optical fibre (POF) data transmission systems. The RC-LEDs with emission windows of O84 μm in diameter, suitable for standard POFs, exhibit bandwidths up to 200 MHz and light power of 3 mW (cw). The maximum external quantum efficiency is 9.5/100. Larger devices, φ500 μm in size, launch light power up to 15 mW. Record high transmission rates, 622 Mbit s~-1, with bit-error rate < 1×10~-11 have been demonstrated for a 1 m long step-index POF. The devices are robust.
展开▼
