Zhang Guicheng, Shen Pengnian. STUDY OF THE MODULATION FREQUENCY CHARACTERISTICS FOR THE InGaAsP/InP DH LED'S[J]. Chinese Journal of Luminescence, 1989,10(1): 46-53
Zhang Guicheng, Shen Pengnian. STUDY OF THE MODULATION FREQUENCY CHARACTERISTICS FOR THE InGaAsP/InP DH LED'S[J]. Chinese Journal of Luminescence, 1989,10(1): 46-53DOI:
In this report the modulation frequency characteristics of InGaAsP/InP LED's were investigated. The InGaAsP/InP DH wafers used for fabricating the LEDs were grown by LPE technique. The structure of the wafer consists of four layers
they are a n-InP buffer layer
Sn or Te doped
a InGaAsP undoped active layer
a p-InP confining layer doped with In-Zn or Zn
a p-InGaAsP contact layer In-Zn or Zn doped.The carrier concentration profile of the InGaAsP/InP DH wafers was measured by electrochemical C-V method. The devices output power is about 1mW at 100mA.The modulation frequency was measured by a tracking scope. The experimental results are as follows.