Wide-Angle Beam-Steering Using an Optical Phased Array with Non-Uniform-Width Waveguide Radiators

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dc.contributor.authorKim, Younginko
dc.contributor.authorYoon, Hyeonhoko
dc.contributor.authorYou, Jong-Bumko
dc.contributor.authorKim, Minchulko
dc.contributor.authorPark, Hyo-Hoonko
dc.date.accessioned2020-11-05T00:55:08Z-
dc.date.available2020-11-05T00:55:08Z-
dc.date.created2020-11-03-
dc.date.issued2020-09-
dc.identifier.citationPHOTONICS, v.7, no.3-
dc.identifier.issn2304-6732-
dc.identifier.urihttp://hdl.handle.net/10203/277120-
dc.description.abstractWe demonstrate wide-angle beam-steering using an optical phased array (OPA) with waveguide radiators designed with non-uniform widths to reduce the crosstalk between waveguides. The OPA consists of a silicon based 1 x 16 array of electro-optic phase shifters and end-fire radiators. The 16 radiators were configured with four different widths and a half-wavelength spacing, which can remove the higher-order diffraction patterns in free space. The waveguides showed a low crosstalk of -10.2 dB at a wavelength of 1540 nm. With phase control, the OPA achieved wide beam-steering of over +/- 80 degrees with a side-lobe suppression of 7.4 dB.-
dc.languageEnglish-
dc.publisherMDPI-
dc.titleWide-Angle Beam-Steering Using an Optical Phased Array with Non-Uniform-Width Waveguide Radiators-
dc.typeArticle-
dc.identifier.wosid000578230300001-
dc.identifier.scopusid2-s2.0-85089776177-
dc.type.rimsART-
dc.citation.volume7-
dc.citation.issue3-
dc.citation.publicationnamePHOTONICS-
dc.identifier.doi10.3390/photonics7030056-
dc.contributor.localauthorPark, Hyo-Hoon-
dc.contributor.nonIdAuthorYoon, Hyeonho-
dc.contributor.nonIdAuthorKim, Minchul-
dc.description.isOpenAccessY-
dc.type.journalArticleArticle-
dc.subject.keywordAuthoroptical phased array-
dc.subject.keywordAuthorsilicon photonics-
dc.subject.keywordAuthorlight detection and ranging-

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