In:
Journal of Optics, IOP Publishing, Vol. 25, No. 6 ( 2023-06-01), p. 065102-
Abstract:
In this work, an eight-channel dense wavelength division multiplexing demultiplexer is designed with a 2D photonic crystal triangular lattice. The proposed demultiplexer consists of a centre bus waveguide, an isosceles trapezium resonant cavity, and an eight-circular ring cavity (CR1, CR2, CR3, CR4, CR5, CR6, CR7, and CR8). The point defect resonant cavity consists of seven rods to drop different wavelengths from eight cavities, each of eight drop waveguides. The design is very simple to realise. The finite difference time domain and plane wave expansion method methods were used to analyse the proposed design’s band structure and transmission spectrum. The resonant wavelengths are 1.5441 μ m, 1.5443 μ m, 1.544 49 μ m, 1.5447 μ m, 1.5449 μ m, 1.5451 μ m, 1.5453 μ m, and 1.5455 μ m respectively. The proposed device provides a high-quality factor, transmission efficiency, and low crosstalk. The device’s footprint is 490.0 μ m 2 , which can be easily incorporated into photonic integrated circuits.
Type of Medium:
Online Resource
ISSN:
2040-8978
,
2040-8986
DOI:
10.1088/2040-8986/acceb3
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2023
detail.hit.zdb_id:
2532144-4
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