{"title":"Dual-Mode Variable Optical Attenuator Based on Balanced Multimode Power Splitters on SOI Platform","authors":"Xin Xu;Siwei Liu;Xin Fu;Jiaqi Niu;Lin Yang","doi":"10.1109/LPT.2024.3427699","DOIUrl":null,"url":null,"abstract":"We designed and experimentally demonstrated the dual-mode variable optical attenuator on the silicon-on-insulator platform. The mode-insensitive Mach-Zehnder interferometer structure is achieved by optimizing the initial phase difference, the splitting coefficient of dual-mode splitters, and the thermal modulation efficiency of the phase shifters, ensuring synchronous attenuation of the \n<inline-formula> <tex-math>${\\mathrm {TE}}_{0}$ </tex-math></inline-formula>\n and \n<inline-formula> <tex-math>${\\mathrm {TE}}_{1}$ </tex-math></inline-formula>\n modes. At 1550 nm wavelength, experimental results show that the maximum attenuation depths of \n<inline-formula> <tex-math>${\\mathrm {TE}}_{0}$ </tex-math></inline-formula>\n and \n<inline-formula> <tex-math>${\\mathrm {TE}}_{1}$ </tex-math></inline-formula>\n modes are 31.33 dB and 20.81 dB, respectively, with driving powers of 23.4 mW and 22.1 mW. Additionally, the measured response time of both modes is under \n<inline-formula> <tex-math>$26~\\mu $ </tex-math></inline-formula>\ns. The device is promising for applications in mode-insensitive optical interconnects.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":null,"pages":null},"PeriodicalIF":2.3000,"publicationDate":"2024-07-15","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/10597659/","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 designed and experimentally demonstrated the dual-mode variable optical attenuator on the silicon-on-insulator platform. The mode-insensitive Mach-Zehnder interferometer structure is achieved by optimizing the initial phase difference, the splitting coefficient of dual-mode splitters, and the thermal modulation efficiency of the phase shifters, ensuring synchronous attenuation of the
${\mathrm {TE}}_{0}$
and
${\mathrm {TE}}_{1}$
modes. At 1550 nm wavelength, experimental results show that the maximum attenuation depths of
${\mathrm {TE}}_{0}$
and
${\mathrm {TE}}_{1}$
modes are 31.33 dB and 20.81 dB, respectively, with driving powers of 23.4 mW and 22.1 mW. Additionally, the measured response time of both modes is under
$26~\mu $
s. The device is promising for applications in mode-insensitive optical interconnects.
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.