EFFECTS OF HIGH SPACE-CHARGE FIELDS ON THE RESPONSE OF MICROWAVE PHOTODETECTORS

被引：91

作者：

WILLIAMS, KJ ^{[1
]}

ESMAN, RD ^{[1
]}

DAGENAIS, M ^{[1
]}

机构：

[1] UNIV MARYLAND,DEPT ELECT ENGN,COLLEGE PK,MD 20742

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1994年 / 6卷 / 05期

关键词：

D O I：

10.1109/68.285565

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We present simulation results, based on a one-dimensional p-i-n photodetector model, to explain the reductions in photodetector response observed at high optical powers. The nonlinear effects are attributed to the redistribution of the internal electric field due to space-charge effects created by the photocarriers. The corresponding modification of the position-dependent charge velocities results in high-frequency response reduction, roll-off reduction, and pulse narrowing. Electric field redistribution leads to two-dimensional effects, which must be included for accurate modeling of milliampere photocurrents.

引用

页码：639 / 641

页数：3

共 10 条

[1]

Boer K.W., 1990, SURVEY SEMICONDUCTOR

[2] NUMERICAL-SIMULATION OF THE NONLINEAR RESPONSE OF A P-I-N PHOTODIODE UNDER HIGH ILLUMINATION [J].