AlGaInP-based resonant-cavity light-emitting diodes (RCLEDs) with high power and high speed have been fabricated. In this study, the RCLEDs were designed with different light-output aperture sizes 84, 60, and 40 μm, for different applications on plastic optical fibers. Small-signal modulation bandwidths as high as 310MHz at a forward current of 20 mA and an output power as high as 1.5 mW can be achieved for devices with 40 μm apertures. The devices with 84 μm apertures had an output power of more than 3.5 mW at a driving current of 20 mA and a maximum efficiency of o ver 12% with an epoxy-encapsulated package. The devices with 40 μm apertures satisfied with the IEEE 1394b s400 standard. Furthermore, the devices showed stable coupling efficiency for various currents and output powers at different ambience temperatures. In addition, the lifetime of devices is over 1300 h, and the power decay is less than 0.5 dB at 85 °C for a 40 mA driving current.
|Number of pages||4|
|Journal||Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers|
|State||Published - 24 Apr 2007|
- Detuning optimization
- Optical communication
- Plastic optical fiber (POF)
- Resonant-cavity light-emitting diodes (RCLEDs)