Photonic crystal-based compact hybrid WDM/MDM (De)multiplexer for SOI platforms

Omnia M. Nawwar, Hossam M.H. Shalaby, Ramesh Pokharel

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A compact hybrid wavelength- (WDM) and mode-division (de)multiplexer (MDM) is proposed, and its performance is evaluated. The design of the device is based on 2D photonic crystals with a square lattice and Si rods. The device can multiplex two eigenmodes, TM 0 and TM 1 , and two wavelengths, 1550 and 1300 nm. Two identical multimode interference couplers and an asymmetric directional coupler are used in implementing both the wavelength- and mode-division multiplexing functions, respectively. To avoid back-reflections, tapers are used at waveguide junctions. The structure is compact with dimensions of 29 μm × 12 μm, which is suitable for on-chip integration. Simulation results reveal that the insertion losses and crosstalks are less than −1.0927 and −11.9024 dB, respectively, for all four channels.

Original languageEnglish
Pages (from-to)4176-4179
Number of pages4
JournalOptics Letters
Volume43
Issue number17
DOIs
Publication statusPublished - Sep 1 2018

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SOI (semiconductors)
platforms
photonics
division
wavelengths
crystals
directional couplers
tapering
crosstalk
multiplexing
insertion loss
couplers
rods
chips
waveguides
interference
simulation

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Photonic crystal-based compact hybrid WDM/MDM (De)multiplexer for SOI platforms. / Nawwar, Omnia M.; Shalaby, Hossam M.H.; Pokharel, Ramesh.

In: Optics Letters, Vol. 43, No. 17, 01.09.2018, p. 4176-4179.

Research output: Contribution to journalArticle

Nawwar, Omnia M. ; Shalaby, Hossam M.H. ; Pokharel, Ramesh. / Photonic crystal-based compact hybrid WDM/MDM (De)multiplexer for SOI platforms. In: Optics Letters. 2018 ; Vol. 43, No. 17. pp. 4176-4179.
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