Ultrafast (200-fs switching, 1.5-Tb/s demultiplexing) and high-repetition (10 GHz) operations of a polarization-discriminating symmetric Mach-Zehnder all-optical switch

被引：57

作者：

Nakamura, S ^{[1
]}

Ueno, Y ^{[1
]}

Tajima, K ^{[1
]}

机构：

[1] NEC Corp Ltd, Optoelect & High Frequency Device Res Labs, Ibaraki 3058501, Japan

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1998年 / 10卷 / 11期

关键词：

all-optical switch; interferometer; nonlinear optics; optical demultiplexer; semiconductor; ultrafast; waveguide;

D O I：

10.1109/68.726754

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 demonstrate 200-fs switching and 1,5-Tb/s demultiplexing with a polarization-discriminating, symmetric Mach-Zehnder (PD-SMZ) ah-optical switch. This switch is based on a highly efficient but slowly relaxing hand-filling effect resonantly excited in a passive InGaAsP bulk waveguide. By using a mechanism that cancers out the effect of the slow relaxation, ultrafast switching is realized. The applicability of this mechanism to optical demultiplexing of well over 1 Tb/s is experimentally demonstrated for the first time. High-repetition operation at 10 GHz with the same nonlinearity used for the present ultrafast switching is also verified.

引用

页码：1575 / 1577

页数：3

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