【摘要】 用于单模光纤系统的平面隐埋脊型(PBRS)InGaAs P/IuP DH LED已研制成功.本文对材料和器件设计作了简要描述.异质结晶体系采用二次液相外延生长,器件具有斜胶面受激抑制结构和平面隐埋脊型有源区,用激光焊接金属化封装技术使器件与单模光纤耦合对接.波器件在单模光纤中的入纤功率达35μW,是国内已见报道中最高的结果,带宽195MHz.在四次群传输实验中,无中继传输距由大于20公里.更多还原

【Abstract】 InGaAsP/InP DH LEDs with planar buried ridge structure (PBRS) for single mode optical fiber communication system have been investigated.The design for materials and device is briefly descrbed. Heterostruc-ture crystals were grown by two-step LPE technology. The LED has a tilted back facet to suppress laser oscillation and a planar buried ridge stripe active region. The device was coupled with single mode fiber using laser welding and metallized fiber coupling and packaging technology. The launched power in single mode fiber was 35 microwatts. This result is reported for the first time in China.The bandwidth of the LED was 195MHz. In 140Mb/s single mode fiber transmission experiments, transmission distance without repeater was more than 20km.更多还原