Open AccessMultimode interference splitter based on dielectric-loaded surface plasmon polariton waveguides
Author(s) -
Guanghui Yuan,
Pei Wang,
Yonghua Lü,
Hai Ming
Publication year - 2009
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.012594
Subject(s) - surface plasmon polariton , optics , splitter , surface plasmon , coupled mode theory , materials science , interference (communication) , dielectric , beam splitter , photonics , refractive index , plasmon , polariton , optoelectronics , waveguide , multi mode optical fiber , physics , optical fiber , telecommunications , laser , channel (broadcasting) , computer science
We numerically demonstrated 1 x N multimode interference (MMI) splitters based on dielectric-loaded surface plasmon polariton waveguides (DLSPPW). The dependences of real part of effective index, propagation length and lateral mode profiles of the waveguides on the geometrical parameters are analyzed in detail. The transmission efficiency of the MMI splitter is as much as 60%, with their splitting length being in the range of several micrometers. The performance of the device is found in agreement with results predicted by theoretical MMI self-imaging theory. Such MMI splitter is important for implementation of high density photonic integration and lab-on-a-chip applications.