{"title":"Classical and Quantum Experiments Using Hybrid Si3N₄-LiNbO₃ Photonic Chip","authors":"Hyungjun Heo;Kiwon Kwon;Donghwa Lee;Hyeong-Soon Jang;Sangin Kim;Heedeuk Shin;Yong-Su Kim;Sang-Wook Han;Hojoong Jung","doi":"10.1109/LPT.2024.3525396","DOIUrl":null,"url":null,"abstract":"We fabricated various optical devices on a hybrid Si3N4–LiNbO3 platform for integrated quantum photonic circuits and observed Hong-Ou–Mandel (HOM) quantum interference. Strip-loaded waveguides were prepared via Si3N4 deposition on LiNbO3. Consequently, fundamental building blocks for quantum photonics, such as ring resonators, various beam splitters, and Mach-Zehnder interferometers, were fabricated and tested. Using 50:50 beam splitters, we observed HOM quantum interference and achieved a visibility of \n<inline-formula> <tex-math>$96.6~\\pm ~1.2$ </tex-math></inline-formula>\n% after the subtraction of accidental counts. More advanced quantum-integrated devices are expected to be realized using the proposed hybrid platform.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 3","pages":"173-176"},"PeriodicalIF":2.3000,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Photonics Technology Letters","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10820544/","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
We fabricated various optical devices on a hybrid Si3N4–LiNbO3 platform for integrated quantum photonic circuits and observed Hong-Ou–Mandel (HOM) quantum interference. Strip-loaded waveguides were prepared via Si3N4 deposition on LiNbO3. Consequently, fundamental building blocks for quantum photonics, such as ring resonators, various beam splitters, and Mach-Zehnder interferometers, were fabricated and tested. Using 50:50 beam splitters, we observed HOM quantum interference and achieved a visibility of
$96.6~\pm ~1.2$
% after the subtraction of accidental counts. More advanced quantum-integrated devices are expected to be realized using the proposed hybrid platform.
期刊介绍：
IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.
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