{"title":"Trillion-switching-cycle endurance and high-speed operation of a nonvolatile magneto-optic switch.","authors":"Shun Yajima, Nobuhiko Nishiyama, Yuya Shoji","doi":"10.1364/OE.571525","DOIUrl":null,"url":null,"abstract":"<p><p>A nonvolatile magneto-optic switch responding to a 5 ns pulse with a switching energy of 4.9 nJ was demonstrated. The switch operates by using a pulsed current-induced magnetic field to magnetize a thin-film magnet, which in turn generates a static magnetic field that magnetizes the magneto-optic phase shifter. Because the phase shift is maintained without continuous power application, the switch achieves low power consumption during periods of infrequent switching. Furthermore, since the operation relies on magnetization reversal-a nondestructive effect-a high write-cycle durability of 1.8 trillion cycles was demonstrated.</p>","PeriodicalId":19691,"journal":{"name":"Optics express","volume":"33 18","pages":"37684-37696"},"PeriodicalIF":3.3000,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics express","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1364/OE.571525","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
A nonvolatile magneto-optic switch responding to a 5 ns pulse with a switching energy of 4.9 nJ was demonstrated. The switch operates by using a pulsed current-induced magnetic field to magnetize a thin-film magnet, which in turn generates a static magnetic field that magnetizes the magneto-optic phase shifter. Because the phase shift is maintained without continuous power application, the switch achieves low power consumption during periods of infrequent switching. Furthermore, since the operation relies on magnetization reversal-a nondestructive effect-a high write-cycle durability of 1.8 trillion cycles was demonstrated.
期刊介绍:
Optics Express is the all-electronic, open access journal for optics providing rapid publication for peer-reviewed articles that emphasize scientific and technology innovations in all aspects of optics and photonics.