BANDWIDTH OPTIMIZATION OF OPTICAL ADD DROP MULTIPLEXERS USING CASCADED COUPLERS AND MACH-ZEHNDER SECTIONS

被引：20
|
作者：
KOSTRZEWA, C
PETERMANN, K
机构：
[1] Institut für Hochfrequenztechnik, Technische Universität Berlin, Einsteinufer 25
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 1995年 / 7卷 / 08期
关键词：
D O I：
10.1109/68.404009
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：
A synthesis of channel add/drop filters consisting of cascaded directional couplers and equal Mach-Zehnder sections is presented within this paper yielding a Chebyshev transmission characteristic and therefore, the optimum distribution of the coupling coefficients with respect to sidelobe suppression and filter bandwidth, It is shown that the number of selectable channels N-c grows approximately linear with the number of filter stages N, resulting in an equal number of channels and filter stages for a 20-dB sidelobe suppression.
引用
收藏
页码：902 / 904
页数：3
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