REALIZATION OF BROAD-BAND PHASE DEVICES BY USING W-TYPE ECCENTRIC-CORE OPTICAL FIBERS

被引：4
|
作者：
KISHI, N
YAMASHITA, E
机构：
[1] Department of Electronic Engineering, University of Electro-Communications, Chofu-shi, Tokyo 182, 1-5-1, Chofugaoka
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 1990年 / 8卷 / 08期
关键词：
D O I：
10.1109/50.57842
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：
Axially nonsymmetrical W-type optical fibers are proposed as broad-band phase devices for optical-fiber systems to play the role of the Fresnel’s rhomb retarder in classical optical systems. Propagation characteristics of the W-type eccentric-core optical fibers are investigated theoretically by using the boundary-integral method. The results of the numerical analysis indicate that such broad-band phase devices can be realized by using the wavelength-dependent birefringence of axially nonsymmetrical W-type optical fibers. It has been theoretically found in the case of eccentric cores that the relative bandwidth of 18.2% with the phase retardation errors of 2% is realizable without the propagation of higher order mode waves. © 1990, IEEE.
引用
收藏
页码：1207 / 1211
页数：5
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