Optical waveguide isolator based on nonreciprocal loss/gain of amplifier covered by ferromagnetic layer

被引：94

作者：

Zaets, W ^{[1
]}

Ando, K ^{[1
]}

机构：

[1] Electrotech Lab, Tsukuba, Ibaraki 3058568, Japan

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1999年 / 11卷 / 08期

关键词：

integrated optoelectronics; magnetooptic effects; magnetooptic isolators; optical isolators; semiconductor lasers; semiconductor optical amplifiers;

D O I：

10.1109/68.775330

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：

The effect of nonreciprocal loss/gain of a waveguide optical amplifier covered by an absorbing magnetooptic layer was studied for the: first time. It is shown that the optical loss/gain of;this amplifier differs for the forward and backward propagation when the magnetization is perpendicular to the light propagation and lies in the him plane, Using this effect a new design of an optical isolator is proposed, which is beneficial for monolithic integration of the optical isolator with a laser diode. A calculation predicts an isolation ratio as high as 180 dB/cm for GaAs(1-x)P(x)-Al(1-x)Ga(x)As optical amplifier covered by a Co layer.

引用

页码：1012 / 1014

页数：3

共 17 条

[1] REFRACTIVE-INDEX OF GA1-XALXAS [J].