Compact Si photonic multimode interference-based optical circuit for mode division multiplexing applications

A design for a compact Si photonic two mode demultiplexer for mode division multiplexing (MDM) applications is presented. The design uses the self-imaging in multimode interference structures to achieve MDM with an insertion loss less than 0.5 dB and a cross talk better than 20 dB over the C band. T...

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Bibliographic Details
Published in:Optical engineering 2016-07, Vol.55 (7), p.076102-076102
Main Authors: El-Sabban, Salwa, Khalil, Diaa
Format: Article
Language:English
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Summary:A design for a compact Si photonic two mode demultiplexer for mode division multiplexing (MDM) applications is presented. The design uses the self-imaging in multimode interference structures to achieve MDM with an insertion loss less than 0.5 dB and a cross talk better than 20 dB over the C band. The imaging is achieved within a length that is half the length reported in the literature, and its overall dimensions are 42  μm×3  μm. The minimum cross talk is affected by the structure geometry. The tolerance of the design to variations in the dimensions is also studied.
ISSN:0091-3286
1560-2303
DOI:10.1117/1.OE.55.7.076102