【摘要】 本文叙述了用于光通信快速、高辐射度GaAs/GaAlAs双异质结发光管的性能。其电带宽大于60MHz,光带宽在100MHz以上。在200mA辐射度为1017W/cm~2·sr。尾纤输出超过160μw(NA=0.2)。分析和讨论了影响辐射输出和调制能力的诸因素,并选取了最佳折衷方案。更多还原

【Abstract】 The performances of high speed and high radiance GaAs/GaAlAs DH LEDs used for Fiber optical communications are described.Their electrical bandwidth is higher than 60MHz and optical bandwidth is over 100MHz. The source radiance was measured to be 1017W/cm2·sr at 200mA. The output power at the pigtail of a fiber is more than 160μW with a draving current of 200mA (core diameter of fibers= 60μm and numerical aperture NA=0.2). We have analysed and discussed the factors affecting on both radiative output and the modulation capability, andthe trade-off was reasonably selected.更多还原