{"title":"基于Si马赫-曾德调制器斜率检测的正交偏置方法","authors":"Jae-Koo Park;Min-Hyeok Seong;Kihun Kim;Jae-Ho Lee;Woo-Young Choi","doi":"10.1109/JPHOT.2025.3588233","DOIUrl":null,"url":null,"abstract":"We propose a novel quadrature biasing method for a silicon Mach-Zehnder Modulator (Si MZM) with an on-chip heater. The proposed technique determines the quadrature point by sweeping the heater voltage while modulating the RF signal to locate the point of maximum optical modulation efficiency. The quadrature bias point can be identified by sweeping the heater voltage only within the <inline-formula><tex-math>${{V}_\\pi }$</tex-math></inline-formula> range, instead of the full <inline-formula><tex-math>${{V}_{2\\pi }}.$</tex-math></inline-formula> Moreover, this method can determine the slope polarity simultaneously while detecting the optimal modulation point, enabling a more robust dithering mode operation. The proposed technique is successfully demonstrated for a custom-designed Si MZM using an FPGA along with a few commercial ICs.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"17 4","pages":"1-5"},"PeriodicalIF":2.1000,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11078140","citationCount":"0","resultStr":"{\"title\":\"A Quadrature Biasing Method Based on Slope Detection for Si Mach-Zehnder Modulators\",\"authors\":\"Jae-Koo Park;Min-Hyeok Seong;Kihun Kim;Jae-Ho Lee;Woo-Young Choi\",\"doi\":\"10.1109/JPHOT.2025.3588233\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We propose a novel quadrature biasing method for a silicon Mach-Zehnder Modulator (Si MZM) with an on-chip heater. The proposed technique determines the quadrature point by sweeping the heater voltage while modulating the RF signal to locate the point of maximum optical modulation efficiency. The quadrature bias point can be identified by sweeping the heater voltage only within the <inline-formula><tex-math>${{V}_\\\\pi }$</tex-math></inline-formula> range, instead of the full <inline-formula><tex-math>${{V}_{2\\\\pi }}.$</tex-math></inline-formula> Moreover, this method can determine the slope polarity simultaneously while detecting the optimal modulation point, enabling a more robust dithering mode operation. The proposed technique is successfully demonstrated for a custom-designed Si MZM using an FPGA along with a few commercial ICs.\",\"PeriodicalId\":13204,\"journal\":{\"name\":\"IEEE Photonics Journal\",\"volume\":\"17 4\",\"pages\":\"1-5\"},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2025-07-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11078140\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Photonics Journal\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/11078140/\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Photonics Journal","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/11078140/","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
A Quadrature Biasing Method Based on Slope Detection for Si Mach-Zehnder Modulators
We propose a novel quadrature biasing method for a silicon Mach-Zehnder Modulator (Si MZM) with an on-chip heater. The proposed technique determines the quadrature point by sweeping the heater voltage while modulating the RF signal to locate the point of maximum optical modulation efficiency. The quadrature bias point can be identified by sweeping the heater voltage only within the ${{V}_\pi }$ range, instead of the full ${{V}_{2\pi }}.$ Moreover, this method can determine the slope polarity simultaneously while detecting the optimal modulation point, enabling a more robust dithering mode operation. The proposed technique is successfully demonstrated for a custom-designed Si MZM using an FPGA along with a few commercial ICs.
期刊介绍:
Breakthroughs in the generation of light and in its control and utilization have given rise to the field of Photonics, a rapidly expanding area of science and technology with major technological and economic impact. Photonics integrates quantum electronics and optics to accelerate progress in the generation of novel photon sources and in their utilization in emerging applications at the micro and nano scales spanning from the far-infrared/THz to the x-ray region of the electromagnetic spectrum. IEEE Photonics Journal is an online-only journal dedicated to the rapid disclosure of top-quality peer-reviewed research at the forefront of all areas of photonics. Contributions addressing issues ranging from fundamental understanding to emerging technologies and applications are within the scope of the Journal. The Journal includes topics in: Photon sources from far infrared to X-rays, Photonics materials and engineered photonic structures, Integrated optics and optoelectronic, Ultrafast, attosecond, high field and short wavelength photonics, Biophotonics, including DNA photonics, Nanophotonics, Magnetophotonics, Fundamentals of light propagation and interaction; nonlinear effects, Optical data storage, Fiber optics and optical communications devices, systems, and technologies, Micro Opto Electro Mechanical Systems (MOEMS), Microwave photonics, Optical Sensors.