Very high-speed GaN-based cyan light emitting diode on patterned sapphire substrate for 1 Gbps plastic optical fiber communication

We demonstrate novel cyan light-emitting-diodes (LEDs) on patterned-sapphire substrate with record-high electrical-to-optical bandwidth (0.38 GHz) among visible LEDs. 0.93Gbps error-free transmission in plastic-optical-fiber can be achieved by using such device under only 20mA bias current.