GENERAL SELF-IMAGING PROPERTIES IN N X N MULTIMODE INTERFERENCE COUPLES INCLUDING PHASE-RELATIONS

被引:344
作者
BACHMANN, M
BESSE, PA
MELCHIOR, H
机构
[1] Institute of Quantum Electronics, Swiss Federal Institute of Technology, Zurich
来源
APPLIED OPTICS | 1994年 / 33卷 / 18期
关键词
INTEGRATED OPTICS; OPTICAL SPLITTERS AND COMBINERS; SELF-IMAGING;
D O I
10.1364/AO.33.003905
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Self-imaging properties of generalized N x N multimode interference couplers are derived. Positions, amplitudes, and phases of the self-images are directly related to the lengths and widths of the coupler by solving the eigenmode superposition equation analytically for any arbitrary length. Devices of length (MIN) 3L(c), where M is the multiple occurrence of the N self-images, are analyzed in detail. The general formalism is applied to practical N x N couplers used in integrated optics, and simple phase relations are obtained.
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页码:3905 / 3911
页数:7
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