TY - JOUR
T1 - Base transport factor and frequency response of transistor lasers
AU - Li, Yue
AU - Leburton, Jean Pierre
N1 - This work was sponsored in part by E2CDA-NRI, a funded center of NRI, a Semiconductor Research Corporation (SRC) program sponsored by NERC and NIST under Grant No. NERC 2016-NE-2697-A and by the National Science Foundation under Grant No. ECCS 16-40196.
PY - 2019/10/21
Y1 - 2019/10/21
N2 - We report on a charge control analysis that relates the characteristic time constants of a three-port laser made of a quantum-well (QW) heterojunction bipolar transistor (HBT) to the electronic gain of the device. For this purpose, we take into account the linear variation of the base transport factor α with the HBT base current. Our approach enables us to obtain QW capture time, base recombination lifetime, and base transit time in terms of the experimental values of base current and of the transistor laser (TL) design parameters such as base width, QW width, and QW location. Whereas the base recombination lifetime is calculated to be a fraction of a nanosecond, the QW capture time is found to be of the order of a picosecond or less. The time constants obtained from our model are used to successfully reproduce the TL experimental optical frequency response.
AB - We report on a charge control analysis that relates the characteristic time constants of a three-port laser made of a quantum-well (QW) heterojunction bipolar transistor (HBT) to the electronic gain of the device. For this purpose, we take into account the linear variation of the base transport factor α with the HBT base current. Our approach enables us to obtain QW capture time, base recombination lifetime, and base transit time in terms of the experimental values of base current and of the transistor laser (TL) design parameters such as base width, QW width, and QW location. Whereas the base recombination lifetime is calculated to be a fraction of a nanosecond, the QW capture time is found to be of the order of a picosecond or less. The time constants obtained from our model are used to successfully reproduce the TL experimental optical frequency response.
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U2 - 10.1063/1.5099041
DO - 10.1063/1.5099041
M3 - Article
AN - SCOPUS:85073805007
SN - 0021-8979
VL - 126
JO - Journal of Applied Physics
JF - Journal of Applied Physics
IS - 15
M1 - 153103
ER -