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Realization of a High Coupling Efficiency by Employing a Concave Lens Based on Two-Dimensional Photonic Crystals with a Negative Refractive Index

AbdelMalek, Fathi, Belhadj, Walid, Haxha, Shyqyri, Bouchriha, Habib (2007) Realization of a High Coupling Efficiency by Employing a Concave Lens Based on Two-Dimensional Photonic Crystals with a Negative Refractive Index. IEEE/OSA Journal of Lightwave Technology, 25 (10). pp. 3168-3174. ISSN 0733-8724. (doi:10.1109/JLT.2007.904027) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:6352)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
Official URL:
http://dx.doi.org/10.1109/JLT.2007.904027

Abstract

A study of the interaction of a continuous-wave Gaussian beam with a concave lens used as a spot-size converter (SSC) is presented. The lens is based on a 2-D photonic crystal (PC) structure with a negative refractive index. A numerical method based on a 2-D finite-difference time domain was employed to investigate the light propagation in a photonic integrated circuitry (PIC). The PIC consisted of a single-mode fiber, an SSC, and a PC waveguide (PCW). By employing an optimized planoconcave lens, a large spot-size area of the Gaussian beam was focused/transformed into a very small spot-size area, which is even smaller than the order of the operating wavelength. Optimization of the proposed device parameters has also been reported. A significant reduction in the device size, transmission efficiency, and coupling efficiency has been achieved by optimizing the planoconcave lens and the PCW.

Item Type: Article
DOI/Identification number: 10.1109/JLT.2007.904027
Uncontrolled keywords: concave lens; finite-difference time domain (FDTD); metamaterials; negative refractive index; numerical method; photonic crystals (PCs); spot-size converters (SSCs)
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering > TK5101 Telecommunications > TK5103.59 Optical communications
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Yiqing Liang
Date Deposited: 26 Jun 2008 10:47 UTC
Last Modified: 16 Nov 2021 09:44 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/6352 (The current URI for this page, for reference purposes)

University of Kent Author Information

Haxha, Shyqyri.

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