Title :
Transient response of the excited photocurrent inside the optoelectronic integrated device (OEID)
Author :
El-Mashade, Mohamed B. ; Ashry, M. ; Eladl, Sh M. ; Rageh, M.S.
Author_Institution :
Dept. of Electr. Eng., Azhar Univ., Egypt
Abstract :
In this paper, the transient response of the excited photocurrent inside an optoelectronic integrated device (OEID) is analyzed. The device is composed of a heterojunction phototransistor (HPT) and a laser diode (LD). The expressions describing the transient response of the output, the rise time, and the output derivative are derived. The effect of the various device parameters on the transient response is outlined. The results show that the transient response of these types of devices is strongly depend on the optical feedback inside the device and it is found that the device works in two different modes, which are: amplification, for small optical feedback coefficient, switching, for high optical feedback coefficient. This type of model can be exploited as an optical amplifier, optical switching device and other applications.
Keywords :
integrated optoelectronics; optical feedback; optical switches; photoconductivity; phototransistors; semiconductor lasers; transient response; amplification; excited photocurrent; heterojunction phototransistor; laser diode; optical amplifier; optical feedback; optical feedback coefficient; optical switching device; optoelectronic integrated device; output derivative; transient response; Diode lasers; Heterojunctions; Laser excitation; Optical devices; Optical feedback; Photoconductivity; Phototransistors; Semiconductor optical amplifiers; Stimulated emission; Transient response;
Conference_Titel :
Radio Science Conference, 2003. NRSC 2003. Proceedings of the Twentieth National
Print_ISBN :
977-5031-75-3
DOI :
10.1109/NRSC.2003.1217370
