Henna Farheen, Suraj Joshi, J Christoph Scheytt, Viktor Myroshnychenko, Jens Förstner
{"title":"An efficient compact blazed grating antenna for optical phased arrays","authors":"Henna Farheen, Suraj Joshi, J Christoph Scheytt, Viktor Myroshnychenko, Jens Förstner","doi":"10.1088/2515-7647/ad6ed4","DOIUrl":null,"url":null,"abstract":"Phased arrays are vital in communication systems and have received significant interest in the field of optoelectronics and photonics, enabling a wide range of applications such as LiDAR, holography, and wireless communication. In this work, we present a blazed grating antenna that is optimized to have upward radiation efficiency as high as 80% with a compact footprint of 3.5 <italic toggle=\"yes\">µ</italic>m × 2 <italic toggle=\"yes\">µ</italic>m at an operational wavelength of 1.55 <italic toggle=\"yes\">µ</italic>m. Our numerical investigations demonstrate that this antenna in a <inline-formula>\n<tex-math><?CDATA $64\\times64$?></tex-math><mml:math overflow=\"scroll\"><mml:mrow><mml:mn>64</mml:mn><mml:mo>×</mml:mo><mml:mn>64</mml:mn></mml:mrow></mml:math><inline-graphic xlink:href=\"jpphotonad6ed4ieqn1.gif\"></inline-graphic></inline-formula> phased array configuration is capable of producing desired far-field radiation patterns. Additionally, our antenna possesses a low side lobe level of −9.7 dB and a negligible reflection efficiency of under 1%, making it an attractive candidate for integrated optical phased arrays.","PeriodicalId":44008,"journal":{"name":"Journal of Physics-Photonics","volume":"19 1","pages":""},"PeriodicalIF":4.6000,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Physics-Photonics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1088/2515-7647/ad6ed4","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
Phased arrays are vital in communication systems and have received significant interest in the field of optoelectronics and photonics, enabling a wide range of applications such as LiDAR, holography, and wireless communication. In this work, we present a blazed grating antenna that is optimized to have upward radiation efficiency as high as 80% with a compact footprint of 3.5 µm × 2 µm at an operational wavelength of 1.55 µm. Our numerical investigations demonstrate that this antenna in a 64×64 phased array configuration is capable of producing desired far-field radiation patterns. Additionally, our antenna possesses a low side lobe level of −9.7 dB and a negligible reflection efficiency of under 1%, making it an attractive candidate for integrated optical phased arrays.