Photonic crystal waveguide intersection design based on Maxwell's fish-eye lens

The number of waveguides crossing an intersection increases with the development of complex photonic integrated circuits. Numerical simulations are presented to demonstrate that Maxwell's fish-eye (MFE) lens can be used as a multiband crossing medium. In previous designs of waveguide intersecti...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2018-08
Main Authors: Gilarlue, M M, S Hadi Badri, H Rasooli Saghai, Nourinia, J, Ghobadi, Ch
Format: Article
Language:English
Subjects:
Bends
C band
Computer simulation
Crosstalk
Crystal lattices
Fisheye views
Footprints
Insertion loss
Integrated circuits
Intersections
Lattice parameters
Lenses
Optical communication
Photonic crystals
Quantum theory
Waveguides
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The number of waveguides crossing an intersection increases with the development of complex photonic integrated circuits. Numerical simulations are presented to demonstrate that Maxwell's fish-eye (MFE) lens can be used as a multiband crossing medium. In previous designs of waveguide intersection, bends are needed before and after the intersection to adjust the crossing angle resulting in a larger footprint. The presented design incorporates the waveguide bends into the intersection which saves footprint. In this paper, 4x4 and 6x6 intersections based on ideal and graded photonic crystal (GPC) MFE lenses are investigated, where 4 and 6 waveguides intersect, respectively. The intersection based on ideal MFE lens partially covers the O, E, S, C, L, and U bands of optical communication, while the intersection based on GPC-MFE lens is optimized to cover the entire C-band. For 4x4 and 6x6 intersections based on GPC-MFE lens, crosstalk levels are below -24dB and -18dB, and the average insertion losses are 0.60dB and 0.85dB in the C-band with lenses' radii of 7xa and 10xa, respectively, where a is the lattice constant of the photonic crystal.
ISSN:2331-8422
DOI:10.48550/arxiv.1808.06781