Repository logo
 
Publication

Subwavelength structures for taper waveguides

2022-07Journal article Open access
Simple item page
dc.contributor.authorLourenço, Paulo
dc.contributor.authorFantoni, Alessandro
dc.contributor.authorCosta, João
dc.contributor.authorFernandes, Miguel
dc.contributor.authorVieira, Manuela
dc.date.accessioned2023-03-02T14:48:16Z
dc.date.available2023-03-02T14:48:16Z
dc.date.issued2022-07
dc.description.abstractIn Photonic Integrated Circuits (PICs) it is often necessary some sort of mismatch adaptation between waveguides of different cross-sections. There are several instances of such a designing constraint, being the vertical coupling between the PIC and an optical fibre probably the most representative of all examples. Here, the beam of electromagnetic energy inside the PIC must be inserted/extracted through/to an optical fibre. Typical core diameters are approximately 10 µm and 5 µm, for single mode optical fibres operating in the near infrared and visible wavelengths, respectively. On the other hand, the optical interconnects linking individual structures in PICs are usually single mode waveguides, 400 to 500 nm wide and a few hundreds of nanometres thick. This presents a bidimensional mismatch between the optical fibre and the single mode waveguide within the PIC, that requires both lateral and longitudinal beam expansions. In this work, we have approached the lateral expansion of the fundamental mode propagating in a single mode waveguide, at the operating wavelength of 1550 nm and being coupled out into an optical fibre, through a grating structure 14.27 µm wide. To this end, we have designed and simulated a subwavelength metamaterial planar structure, which is able to expand laterally the fundamental mode’s profile from 450 nm to 14.27 µm, within 11.1 µm. Furthermore, we will be presenting the results obtained when comparing this structure with several linear inverted taper waveguides, regarding coupling and propagation efficiencies. Namely, we compared the coupling efficiencies of the modes propagating in an 100 µm long waveguide, when being excited by the analytically calculated fundamental mode and the fields obtained at the end of the designed structure. The results obtained for the designed structure 11.1 µm long and the calculated fundamental mode showed a coupling efficiency of -1.53 dB and -1.20 dB, respectively.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationLOURENÇO, Paulo; [et al] – Subwavelength structures for taper waveguides. In Journal of Physics: Conference Series 2407 (Fifth International Conference on Applications of Optics and Photonics – A AOP2022). Guimarães, Portugal: IOPScience, 2022. ISSN 1742-6596. Vol. 2407. Pp. 1-8.pt_PT
dc.identifier.doi10.1088/1742-6596/2407/1/012040pt_PT
dc.identifier.issn1742-6596
dc.identifier.urihttp://hdl.handle.net/10400.21/15747
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherIOPSciencept_PT
dc.relationIPL/2021/MuMIAS-2D/ISELpt_PT
dc.relationPhotoAKI: Photonic Biosensor for point of care and Early Diagnostics of Acute Kidney Injury
dc.relation.publisherversionhttps://iopscience.iop.org/article/10.1088/1742-6596/2407/1/012040pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectPhotonic integratedpt_PT
dc.subjectOptical fibrept_PT
dc.subjectWaveguidespt_PT
dc.titleSubwavelength structures for taper waveguidespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitlePhotoAKI: Photonic Biosensor for point of care and Early Diagnostics of Acute Kidney Injury
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F144833%2F2019/PT
oaire.citation.conferencePlaceGuimarãespt_PT
oaire.citation.endPage8pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleJournal of Physics: Conference Seriespt_PT
oaire.citation.volume2407pt_PT
person.familyNameLourenço
person.familyNameFantoni
person.familyNameCosta
person.familyNameVieira
person.givenNamePaulo
person.givenNameAlessandro
person.givenNameJoão
person.givenNameManuela
person.identifier10792
person.identifier.ciencia-id431F-5C2C-00FB
person.identifier.ciencia-id241E-E87C-552F
person.identifier.ciencia-id2314-A300-7C09
person.identifier.ciencia-id9516-E25E-BB8E
person.identifier.orcid0000-0002-8785-445X
person.identifier.orcid0000-0002-9938-0351
person.identifier.orcid0000-0002-8058-3685
person.identifier.orcid0000-0002-1150-9895
person.identifier.ridK-1105-2016
person.identifier.ridV-7860-2017
person.identifier.scopus-author-id7006535604
person.identifier.scopus-author-id35810047500
person.identifier.scopus-author-id7202140173
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationcf9e37d2-28dd-4672-a5e8-ef49ded4420f
relation.isAuthorOfPublication9f35eb1e-83e4-4342-a86d-265604301499
relation.isAuthorOfPublicationa64d2f5a-2af3-4d5b-adb4-7de0edad0f84
relation.isAuthorOfPublicationb77c6785-9cfb-4cd4-90b5-c2b816bd7d11
relation.isAuthorOfPublication.latestForDiscoveryb77c6785-9cfb-4cd4-90b5-c2b816bd7d11
relation.isProjectOfPublication67acbb76-e33b-4a56-ad5b-0508ab4415e9
relation.isProjectOfPublication.latestForDiscovery67acbb76-e33b-4a56-ad5b-0508ab4415e9

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Subwavelength structures for taper waveguides.pdf
Size:
783.69 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

ISEL - Eng. Elect. Tel. Comp. - Artigos