ALL-OPTICAL SWITCH WITH SWITCH-OFF TIME UNRESTRICTED BY CARRIER LIFETIME

被引：165

作者：

TAJIMA, K

机构：

[1] Opto-Electronics Research Laboratories, NEC Corporation, Tsukuba, IBR, 305

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1993年 / 32卷 / 12A期

关键词：

ALL-OPTICAL SWITCH; NONLINEAR OPTICS; NONLINEAR REFRACTION; ULTRAFAST; WAVE-GUIDE; OPTICAL COMMUNICATION;

D O I：

10.1143/JJAP.32.L1746

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We propose a symmetric Mach-Zehnder-type all-optical switch which is based on the nonlinear refractive index change induced in semiconductors. Unlike most all-optical switches, the switch-off time, as well as the switch-on time, of this novel device is not limited by the usually slow carrier lifetime, allowing a very fast switching speed. Its switching characteristics are theoretically examined under various conditions. It is shown that the device offers a nearly square modulation characteristic that is suitable for most switching applications.

引用

页码：L1746 / L1749

页数：4

共 10 条

[1] 2-PHOTON ABSORPTION AS A LIMITATION TO ALL-OPTICAL WAVE-GUIDE SWITCHING IN SEMICONDUCTORS [J].