An MMI-based demultiplexer with reduced cross-talk

The crosstalk of a multimode interference (MMI)-based demultiplexer is reduced by connecting appropriately designed cascaded MMI filters of high-order. Numerical results show that the designed demultiplexer greatly improves the bandwidth of 20 dB cross-talk loss and has an excellent performance in t...

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Bibliographic Details
Published inOptics communications Vol. 247; no. 4-6; pp. 335 - 339
Main Authors Xiao, Yueyu, He, Sailing
Format Journal Article
LanguageEnglish
Published Elsevier B.V 15.03.2005
Subjects
Crosstalk
Demultiplexer
design
devices
Multimode interference
Planar waveguide circuits
principles
Multimode interference
42.82.−m
42.82.Gw
Planar waveguide circuits
Crosstalk
Demultiplexer
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Summary:The crosstalk of a multimode interference (MMI)-based demultiplexer is reduced by connecting appropriately designed cascaded MMI filters of high-order. Numerical results show that the designed demultiplexer greatly improves the bandwidth of 20 dB cross-talk loss and has an excellent performance in terms of the insertion loss and chromatic dispersion. Formed with commonly used MMI couplers, the present structure is much easier to implement than other structures.
ISSN:0030-4018
1873-0310
1873-0310
DOI:10.1016/j.optcom.2004.11.070