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Advances in soliton microcomb generation 被引量:19
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作者 Weiqiang Wang Leiran Wang Wenfu Zhang 《Advanced Photonics》 EI CSCD 2020年第3期2-28,共27页
Optical frequency combs,a revolutionary light source characterized by discrete and equally spaced frequencies,are usually regarded as a cornerstone for advanced frequency metrology,precision spectroscopy,high-speed co... Optical frequency combs,a revolutionary light source characterized by discrete and equally spaced frequencies,are usually regarded as a cornerstone for advanced frequency metrology,precision spectroscopy,high-speed communication,distance ranging,molecule detection,and many others.Due to the rapid development of micro/nanofabrication technology,breakthroughs in the quality factor of microresonators enable ultrahigh energy buildup inside cavities,which gives birth to microcavity-based frequency combs.In particular,the full coherent spectrum of the soliton microcomb(SMC)provides a route to low-noise ultrashort pulses with a repetition rate over two orders of magnitude higher than that of traditional mode-locking approaches.This enables lower power consumption and cost for a wide range of applications.This review summarizes recent achievements in SMCs,including the basic theory and physical model,as well as experimental techniques for single-soliton generation and various extraordinary soliton states(soliton crystals,Stokes solitons,breathers,molecules,cavity solitons,and dark solitons),with a perspective on their potential applications and remaining challenges. 展开更多
关键词 optical frequency comb soliton microcomb MICROCAVITY photonic integration Kerr effect four-wave mixing
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薄膜铌酸锂光电器件与超大规模光子集成(特邀) 被引量:7
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作者 程亚 《中国激光》 EI CAS CSCD 北大核心 2024年第1期386-402,共17页
近年来,薄膜铌酸锂光子集成技术发展极为迅速,其背后有着深刻的物理、材料、技术原因。单晶薄膜铌酸锂为解决光子集成芯片领域长期存在的低传输损耗、高密度集成以及低调制功耗需求提供了至今为止综合性能最优的解决方案。面向未来的新... 近年来,薄膜铌酸锂光子集成技术发展极为迅速,其背后有着深刻的物理、材料、技术原因。单晶薄膜铌酸锂为解决光子集成芯片领域长期存在的低传输损耗、高密度集成以及低调制功耗需求提供了至今为止综合性能最优的解决方案。面向未来的新一代高速光电器件与超大规模光子集成芯片应用,本文回顾了薄膜铌酸锂光子技术的起源及其近期的快速发展,讨论了若干薄膜铌酸锂光子结构的加工技术,并展示了一系列当前性能最优的薄膜铌酸锂光子集成器件与系统,包括超低损耗可调光波导延时线、超高速光调制器、高效率量子光源,以及高功率片上放大器与片上激光器。这些器件以其体积小、质量轻、功耗低、性能好的综合优势,将对整个光电子产业产生难以估量的影响。 展开更多
关键词 光子集成 光波导 光调制器 微波光子学 光量子集成器件 薄膜 薄膜铌酸锂
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On-chip silicon photonic signaling and processing: a review 被引量:11
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作者 Jian Wang Yun Long 《Science Bulletin》 SCIE EI CSCD 2018年第19期1267-1310,共44页
The arrival of the big data era has driven the rapid development of high-speed optical signaling and processing, ranging from long-haul optical communication links to short-reach data centers and highperformance compu... The arrival of the big data era has driven the rapid development of high-speed optical signaling and processing, ranging from long-haul optical communication links to short-reach data centers and highperformance computing, and even micro-/nano-scale inter-chip and intra-chip optical interconnects.On-chip photonic signaling is essential for optical data transmission, especially for chip-scale optical interconnects, while on-chip photonic processing is a critical technology for optical data manipulation or processing, especially at the network nodes to facilitate ultracompact data management with low power consumption. In this paper, we review recent research progress in on-chip photonic signaling and processing on silicon photonics platforms. Firstly, basic key devices (lasers, modulators, detectors)are introduced. Secondly, for on-chip photonic signaling, we present recent works on on-chip data transmission of advanced multi-level modulation signals using various silicon photonic integrated devices(microring, slot waveguide, hybrid plasmonic waveguide, subwavelength grating slot waveguide).Thirdly, for on-chip photonic processing, we summarize recent works on on-chip data processing of advanced multi-level modulation signals exploiting linear and nonlinear effects in different kinds of silicon photonic integrated devices (strip waveguide, directional coupler, 2D grating coupler, microring,silicon-organic hybrid slot waveguide). Various photonic processing functions are demonstrated, such as photonic switch, filtering, polarization/wavelength/mode (de)multiplexing, wavelength conversion,signal regeneration, optical logic and computing. Additionally, we also introduce extended silicon+photonics and show recent works on on-chip graphene-silicon photonic signal processing. The advances in on-chip silicon photonic signaling and processing with favorable performance pave the way to integrate complete optical communication systems on a monolithic chip and integrate silicon photonics and silicon nanoelectronics on a chip 展开更多
关键词 photonic integration Silicon photonics photonic signaling photonic processing Optical communications Optical interconnects
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Prospects and applications of on-chip lasers 被引量:8
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作者 Zhican Zhou Xiangpeng Ou +4 位作者 Yuetong Fang Emad Alkhazraji Renjing Xu Yating Wan John E.Bowers 《eLight》 2023年第1期297-321,共25页
Integrated silicon photonics has sparked a significant ramp-up of investment in both academia and industry as a scalable,power-efficient,and eco-friendly solution.At the heart of this platform is the light source,whic... Integrated silicon photonics has sparked a significant ramp-up of investment in both academia and industry as a scalable,power-efficient,and eco-friendly solution.At the heart of this platform is the light source,which in itself,has been the focus of research and development extensively.This paper sheds light and conveys our perspective on the current state-of-the-art in different aspects of application-driven on-chip silicon lasers.We tackle this from two perspectives:device-level and system-wide points of view.In the former,the different routes taken in integrating on-chip lasers are explored from different material systems to the chosen integration methodologies.Then,the discussion focus is shifted towards system-wide applications that show great prospects in incorporating photonic integrated circuits(PIC)with on-chip lasers and active devices,namely,optical communications and interconnects,optical phased array-based LiDAR,sensors for chemical and biological analysis,integrated quantum technologies,and finally,optical computing.By leveraging the myriad inherent attractive features of integrated silicon photonics,this paper aims to inspire further development in incorporating PICs with on-chip lasers in,but not limited to,these applications for substantial performance gains,green solutions,and mass production. 展开更多
关键词 On-chip lasers Silicon photonics photonic integration COMMUNICATION LIDAR Optical computing
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Mode division multiplexing:from photonic integration to optical fiber transmission[Invited] 被引量:10
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作者 Jiangbing Du Weihong Shen +3 位作者 jiacheng Liu Yufeng Chen Xinyi Chen Zuyuan He 《Chinese Optics Letters》 SCIE EI CAS CSCD 2021年第9期29-52,共24页
To overcome the capacity crunch of optical communications based on the traditional single-mode fiber(SMF), different modes in a few-mode fiber(FMF) can be employed for mode division multiplexing(MDM). MDM can also be ... To overcome the capacity crunch of optical communications based on the traditional single-mode fiber(SMF), different modes in a few-mode fiber(FMF) can be employed for mode division multiplexing(MDM). MDM can also be extended to photonic integration for obtaining improved density and efficiency, as well as interconnection capacity. Therefore, MDM becomes the most promising method for maintaining the trend of "Moore’s law" in photonic integration and optical fiber transmission. In this tutorial, we provide a review of MDM works and cutting-edge progresses from photonic integration to optical fiber transmission, including our recent works of MDM low-noise amplification, FMF fiber design, MDM Si photonic devices, and so on. Research and application challenges of MDM for optical communications regarding long-haul transmission and short reach interconnection are discussed as well. The content is expected to be of important value for both academic researchers and industrial engineers during the development of next-generation optical communication systems,from photonic chips to fiber links. 展开更多
关键词 mode division multiplexing photonic integration few-mode fiber optical transmission optical interconnection
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3D-printed facet-attached microlenses for advanced photonic system assembly 被引量:4
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作者 Yilin Xu Pascal Maier +15 位作者 Mareike Trappen Philipp-Immanuel Dietrich Matthias Blaicher Rokas Jutas Achim Weber Torben Kind Colin Dankwart Jens Stephan Andreas Steffan Amin Abbasi Padraic Morrissey Kamil Gradkowski Brian Kelly Peter O’Brien Wolfgang Freude Christian Koos 《Light(Advanced Manufacturing)》 2023年第2期1-17,共17页
Wafer-level mass production of photonic integrated circuits(PIC)has become a technological mainstay in the field of optics and photonics,enabling many novel and disrupting a wide range of existing applications.However... Wafer-level mass production of photonic integrated circuits(PIC)has become a technological mainstay in the field of optics and photonics,enabling many novel and disrupting a wide range of existing applications.However,scalable photonic packaging and system assembly still represents a major challenge that often hinders commercial adoption of PIC-based solutions.Specifically,chip-to-chip and fiber-to-chip connections often rely on so-called active alignment techniques,where the coupling efficiency is continuously measured and optimized during the assembly process.This unavoidably leads to technically complex assembly processes and high cost,thereby eliminating most of the inherent scalability advantages of PIC-based solutions.In this paper,we demonstrate that 3D-printed facet-attached microlenses(FaML)can overcome this problem by opening an attractive path towards highly scalable photonic system assembly,relying entirely on passive assembly techniques based on industry-standard machine vision and/or simple mechanical stops.FaML can be printed with high precision to the facets of optical components using multi-photon lithography,thereby offering the possibility to shape the emitted beams by freely designed refractive or reflective surfaces.Specifically,the emitted beams can be collimated to a comparatively large diameter that is independent of the device-specific mode fields,thereby relaxing both axial and lateral alignment tolerances.Moreover,the FaML concept allows to insert discrete optical elements such as optical isolators into the free-space beam paths between PIC facets.We show the viability and the versatility of the scheme in a series of selected experiments of high technical relevance,comprising pluggable fiber-chip interfaces,the combination of PIC with discrete micro-optical elements such as polarization beam splitters,as well as coupling with ultra-low back-reflection based on non-planar beam paths that only comprise tilted optical surfaces.Based on our results,we believe that the FaML concept opens an 展开更多
关键词 photonic integration photonic assembly photonic packaging Additive laser manufacturing Multi-photon lithography Facet-attached microlenses Optical alignment tolerances Fiber-chip coupling Hybrid multi-chip modules
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高速电吸收调制激光器研究进展 被引量:9
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作者 孙长征 杨舒涵 +2 位作者 熊兵 王健 罗毅 《中国激光》 EI CAS CSCD 北大核心 2020年第7期22-30,共9页
随着数据中心、5G宽带无线通信的不断发展,短距宽带传输的需求大幅增长,极大地推动了高速光电器件的发展。在短距应用中,虽然直接调制激光器具有低成本、低功耗的优势,但其调制带宽和传输距离受到张弛振荡频率和频率啁啾的限制。电吸收... 随着数据中心、5G宽带无线通信的不断发展,短距宽带传输的需求大幅增长,极大地推动了高速光电器件的发展。在短距应用中,虽然直接调制激光器具有低成本、低功耗的优势,但其调制带宽和传输距离受到张弛振荡频率和频率啁啾的限制。电吸收调制激光器(EML)集成光源具有大调制带宽、低频率啁啾的特点,可以实现更高速率和更远距离的传输。介绍了EML集成光源的外延集成方案和器件结构,并介绍了国内外研究机构对高速率、大功率、低成本EML的主要研究进展,最后对EML的未来发展进行了展望。 展开更多
关键词 激光器 半导体激光器 调制器 电吸收调制激光器 光子集成
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Photonic integrated technology for multi-wavelength laser emission 被引量:9
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作者 CHEN XiangFei LIU Wen +6 位作者 AN JunMing LIU Yu XU Kun WANG Xin LIU JianGuo JI YueFeng ZHU NingHua 《Chinese Science Bulletin》 SCIE EI CAS 2011年第28期3064-3071,共8页
We summarized the design, fabrication challenges and important technologies for multi-wavelength laser transmitting photonic integration. Technologies discussed include multi-wavelength laser arrays, monolithic integr... We summarized the design, fabrication challenges and important technologies for multi-wavelength laser transmitting photonic integration. Technologies discussed include multi-wavelength laser arrays, monolithic integration and modularizing coupling and packaging. Fabrication technique requirements have significantly declined with the rise of reconstruction-equivalent-chirp and second nanoimprint mask technologies. The monolithic integration problem between active and passive waveguides can be overcome with Butt-joint and InP array waveguide grating technologies. The dynamic characteristics of multi-factors will be simultaneously measured with multi-port analyzing modules. The performance of photonic integration chips is significantly improved with the autoecious factors compensation packaging technique. 展开更多
关键词 多波长激光 光子集成 集成技术 激光发射 阵列波导 单片集成 制造技术 激光传输
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基于半导体光放大器的全光信号处理研究进展 被引量:7
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作者 努尔买买提 徐天翔 +2 位作者 陈立功 张尚剑 刘永 《激光杂志》 CAS CSCD 北大核心 2012年第3期1-4,共4页
本文介绍了基于半导体光放大器非线性光学特性的全光信号处理研究进展。探讨基于半导体光放大器的光波长转换,光信号再生、光逻辑门以及光信号的码型转换等全光信号处理单元。分析国内外各种全光信号处理方案,总结其特色,并对未来发展... 本文介绍了基于半导体光放大器非线性光学特性的全光信号处理研究进展。探讨基于半导体光放大器的光波长转换,光信号再生、光逻辑门以及光信号的码型转换等全光信号处理单元。分析国内外各种全光信号处理方案,总结其特色,并对未来发展趋势以及光子集成提出了展望。 展开更多
关键词 半导体光放大器 全光信号处理 光交换 光子集成
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Photonic integrated optical phased arrays and their applications[Invited] 被引量:1
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作者 马志鹏 万远剑 +7 位作者 梁航 付瑶 唐国彪 赵晓阳 赵世傲 匡海波 张宇 王健 《Chinese Optics Letters》 SCIE EI CAS CSCD 2024年第2期42-55,共14页
In recent years,optical phased arrays(OPAs)have attracted great interest for their potential applications in light detection and ranging(Li DAR),free-space optical communications(FSOs),holography,and so on.Photonic in... In recent years,optical phased arrays(OPAs)have attracted great interest for their potential applications in light detection and ranging(Li DAR),free-space optical communications(FSOs),holography,and so on.Photonic integrated circuits(PICs)provide solutions for further reducing the size,weight,power,and cost of OPAs.In this paper,we review the recent development of photonic integrated OPAs.We summarize the typical architecture of the integrated OPAs and their performance.We analyze the key components of OPAs and evaluate the figure of merit for OPAs.Various applications in Li DAR,FSO,imaging,biomedical sensing,and specialized beam generation are introduced. 展开更多
关键词 optical phased arrays LIDAR silicon photonics beam steering photonic integration
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硅基光波导开关技术综述 被引量:7
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作者 涂鑫 陈震旻 付红岩 《物理学报》 SCIE EI CAS CSCD 北大核心 2019年第10期153-167,共15页
硅基光波导开关技术是公认的低成本光交换技术,在电信网络、数据中心和高性能计算领域中都具有非常广泛的应用前景.本文系统综述了近年来硅基光波导开关技术研究取得的主要进展,首先对马赫-曾德尔干涉仪型、微环谐振型和微电子机械系统... 硅基光波导开关技术是公认的低成本光交换技术,在电信网络、数据中心和高性能计算领域中都具有非常广泛的应用前景.本文系统综述了近年来硅基光波导开关技术研究取得的主要进展,首先对马赫-曾德尔干涉仪型、微环谐振型和微电子机械系统驱动波导型三种硅基光波导开关技术进行了介绍,并对不同原理的光开关技术的应用场景进行了总结;然后讨论了影响大端口光开关性能的关键技术,特别着重于拓扑架构、无源器件和光电封装等方面;最后对硅基光波导开关技术的技术挑战和研究方向进行了展望,其对未来硅基全光交换技术的实用化具有指导性意义. 展开更多
关键词 光开关 硅光子学 光互连 光子集成
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硅基Ⅲ-Ⅴ族量子点激光器的发展现状和前景 被引量:7
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作者 王霆 张建军 Huiyun Liu 《物理学报》 SCIE EI CAS CSCD 北大核心 2015年第20期19-26,共8页
本文简要综述了硅基Ⅲ-Ⅴ族量子点激光器的研究进展.在介绍了量子点激光器的优势和发展后,重点介绍了近年来硅基、锗基Ⅲ-Ⅴ族量子点材料生长上的突破性进展及所带来的器件性能的大幅提高,如实现了锗基和硅基1.3μm InAs/GaAs量子点激... 本文简要综述了硅基Ⅲ-Ⅴ族量子点激光器的研究进展.在介绍了量子点激光器的优势和发展后,重点介绍了近年来硅基、锗基Ⅲ-Ⅴ族量子点材料生长上的突破性进展及所带来的器件性能的大幅提高,如实现了锗基和硅基1.3μm InAs/GaAs量子点激光器的室温激射,锗基量子点激光器的阈值电流低至55.2 A/cm^2并可达60℃以上的连续激射,通过锗硅虚拟衬底,在硅基上实现了30℃下以16.6 mW的输出功率达到4600 h的激光寿命,这些突破性的进展为硅基光电子集成打开了新的大门. 展开更多
关键词 半导体激光 激光材料 集成光学 光电子器件
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硅基热光、电光、全光开关及其阵列的研究进展 被引量:6
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作者 李显尧 俞育德 余金中 《物理》 CAS 北大核心 2013年第4期272-279,共8页
光开关在实现高速信息互连中扮演着重要的角色,受到人们的广泛关注。随着器件结构的不断创新以及半导体加工技术的不断改进,光开关的发展趋向于低功耗、高速和易集成等特点。文章介绍了功耗仅为540mW的热光开关,响应时间为4ns的电光开... 光开关在实现高速信息互连中扮演着重要的角色,受到人们的广泛关注。随着器件结构的不断创新以及半导体加工技术的不断改进,光开关的发展趋向于低功耗、高速和易集成等特点。文章介绍了功耗仅为540mW的热光开关,响应时间为4ns的电光开关和响应时间为25ps的全光开关,重点分析了这三种开关中存在的问题,并提出了解决方法,同时还探讨了开关在阵列化时应考虑的主要问题。 展开更多
关键词 光开关 硅光子学 绝缘层上的硅 光子集成
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光电振荡器:从分立到薄膜铌酸锂光集成(特邀)
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作者 黄梓骏 马蕊 蔡鑫伦 《激光与光电子学进展》 CSCD 北大核心 2024年第11期8-23,共16页
光电振荡器(OEO)可以产生高频、宽带可调、低相位噪声的射频(RF)信号,可应用于5G通信、雷达探测和传感等领域。OEO的基本结构主要包括激光器、调制器、储能介质、光电探测器、RF放大器和RF滤波器,实现低相位噪声的关键是高Q储能介质,例... 光电振荡器(OEO)可以产生高频、宽带可调、低相位噪声的射频(RF)信号,可应用于5G通信、雷达探测和传感等领域。OEO的基本结构主要包括激光器、调制器、储能介质、光电探测器、RF放大器和RF滤波器,实现低相位噪声的关键是高Q储能介质,例如低损耗的长光纤或者高Q因子的光学谐振腔。自姚晓天博士在1996年首次提出OEO至今,已经衍生出各种OEO结构,但它们大多都由分立器件组成,体积庞大、价格昂贵且使用不便。随着各种集成光学材料平台的成熟,小尺寸、低成本和更可靠的集成OEO成为可能,例如绝缘体上硅(SOI)OEO、磷化铟(InP)OEO和硫化物OEO等,但由于这些材料本身高损耗、非线性和温度敏感等特性,难以实现OEO所需的高性能电光调制器和高Q的储能介质,而薄膜铌酸锂(TFLN)由于宽透明窗口、大线性电光系数和低损耗特性在实现高性能的电光调制器和高Q微腔中已经得到广泛应用,有望实现高频、宽带可调、低相位噪声的RF信号。本文回顾过去30年从分立OEO到集成OEO的发展历程并展望未来集成OEO的发展前景。 展开更多
关键词 薄膜铌酸锂 光电振荡器 高频 相位噪声 光集成
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基于X切薄膜铌酸锂的4×4 MMI耦合器的设计和制造
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作者 邓冶 李坚平 张振荣 《光通信技术》 北大核心 2024年第4期54-57,共4页
针对多模干涉(MMI)耦合器存在尺寸大、插入损耗高、工艺复杂的问题,在基于X切薄膜铌酸锂(X-cut TFLN)平台上设计了一种基于横电(TE)模式的4×4 MMI耦合器,采用三维时域有限差分(FDTD)方法对MMI区域长度及宽度进行仿真优化,最后根据... 针对多模干涉(MMI)耦合器存在尺寸大、插入损耗高、工艺复杂的问题,在基于X切薄膜铌酸锂(X-cut TFLN)平台上设计了一种基于横电(TE)模式的4×4 MMI耦合器,采用三维时域有限差分(FDTD)方法对MMI区域长度及宽度进行仿真优化,最后根据优化结果并利用电感耦合等离子体(ICP)刻蚀方法在该平台上制造4×4 MMI耦合器。仿真结果表明,优化后的4×4 MMI耦合器总插入损耗为0.36 dB,实际测量插入损耗为0.78 dB。 展开更多
关键词 薄膜铌酸锂 多模干涉耦合器 光子集成 低插入损耗 电感耦合等离子体刻蚀
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薄膜铌酸锂微纳结构的非线性光学研究进展(特邀)
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作者 邓莉 高仁宏 +4 位作者 管江林 黎春桃 赵光辉 李明慧 乔迁 《激光与光电子学进展》 CSCD 北大核心 2024年第11期103-135,共33页
薄膜铌酸锂(TFLN)微腔和波导等微纳结构提供了强烈的光场约束能力,显著增强光与物质的相互作用,在光通信、光计算、集成光学和集成量子信息处理等关键前沿科学和高技术应用领域中具有重要的应用价值。本文回顾了薄膜铌酸锂微纳结构的基... 薄膜铌酸锂(TFLN)微腔和波导等微纳结构提供了强烈的光场约束能力,显著增强光与物质的相互作用,在光通信、光计算、集成光学和集成量子信息处理等关键前沿科学和高技术应用领域中具有重要的应用价值。本文回顾了薄膜铌酸锂微纳结构的基本原理、制备技术演化过程和最新应用进展,并详细讨论其在频率转换、光电调制、频率光梳、微波-光波转换、量子光子学,以及激光技术等领域的广泛应用。这些技术的应用极大推动了大规模集成光子电路和量子网络的发展,同时也展望了未来与薄膜铌酸锂相关的、具有应用潜力的其他研究方向。 展开更多
关键词 铌酸锂 光学微腔 波导 非线性光学 激光 量子光学 片上集成
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用于FBG解调的AWG芯片的设计、仿真与制备
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作者 李姝锋 袁配 +4 位作者 黎婷 李丙祥 许然 杨奕瑶 祝连庆 《半导体光电》 CAS 北大核心 2024年第1期69-73,共5页
设计、仿真并制备了一种用于光纤布拉格光栅(FBG)解调的阵列波导光栅(AWG)芯片。该芯片基于SOI衬底进行制备,并在AWG的输入/输出波导、阵列波导与平板波导之间采用双刻蚀结构进行优化。经仿真,该AWG的插入损耗为1.5 dB,串扰小于-20 dB,3... 设计、仿真并制备了一种用于光纤布拉格光栅(FBG)解调的阵列波导光栅(AWG)芯片。该芯片基于SOI衬底进行制备,并在AWG的输入/输出波导、阵列波导与平板波导之间采用双刻蚀结构进行优化。经仿真,该AWG的插入损耗为1.5 dB,串扰小于-20 dB,3 dB带宽为1.5 nm。优化后的AWG芯片采用深紫外光刻技术、电感耦合等离子体等技术制备。经测试,该AWG的插入损耗为3 dB,串扰小于-20 dB,3 dB带宽为2.3 nm。搭建了基于该AWG的解调系统,解调实验结果表明,该系统在0.8 nm范围内的解调精度可达11.26 pm,波长分辨率为6 pm。 展开更多
关键词 阵列波导光栅 绝缘体上硅 光纤传感 光纤光栅解调系统 光子集成
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混沌半导体激光器及其应用研究进展(特邀)
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作者 乔丽君 王小娜 +1 位作者 郝玉凯 张明江 《激光与光电子学进展》 CSCD 北大核心 2024年第1期256-269,共14页
混沌激光具有宽频谱、类噪声、低相干等特性,在通信、雷达、传感等领域有广泛的应用。本文介绍了混沌半导体激光器的3种主要工作机制,分别为光反馈、光注入和光电反馈;重点研究典型混沌半导体激光器的频谱带宽、时延特征,以及复杂度等... 混沌激光具有宽频谱、类噪声、低相干等特性,在通信、雷达、传感等领域有广泛的应用。本文介绍了混沌半导体激光器的3种主要工作机制,分别为光反馈、光注入和光电反馈;重点研究典型混沌半导体激光器的频谱带宽、时延特征,以及复杂度等性能及其研究进展;进一步论述光子集成混沌半导体激光器的发展趋势;最后介绍混沌半导体激光器在保密光通信、随机数生成器、激光雷达、分布式光纤传感、混沌光时域反射计等领域的应用现状。本文可为高带宽、低时延混沌半导体激光器的发展和应用前景提供借鉴。 展开更多
关键词 混沌激光 半导体激光器 光子集成 带宽提升 时延特征
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薄膜铌酸锂多尖端端面耦合结构
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作者 王嘉毅 蔡明璐 +3 位作者 李天怡 张栩嘉 陈建平 吴侃 《光学学报》 EI CAS CSCD 北大核心 2024年第11期115-122,共8页
为提升薄膜铌酸锂芯片端面耦合的效率和稳定性,结合铌酸锂材料的刻蚀特点和工艺条件,设计并研究双层多尖端逆锥形的耦合结构。通过仿真计算、参数扫描和对比分析,探究双尖端和三尖端逆锥形耦合结构的特性及其参数选取方案。多尖端设计... 为提升薄膜铌酸锂芯片端面耦合的效率和稳定性,结合铌酸锂材料的刻蚀特点和工艺条件,设计并研究双层多尖端逆锥形的耦合结构。通过仿真计算、参数扫描和对比分析,探究双尖端和三尖端逆锥形耦合结构的特性及其参数选取方案。多尖端设计可扩大端面处的模场,从而降低对加工精度的要求。在侧壁倾角62°和最小宽度150 nm的工艺条件下,理想的双尖端和三尖端结构分别在1550 nm波长处实现0.47 dB和1.04 dB的单端耦合损耗,且具有较大的工作带宽和对准容差。最后,结合多尖端耦合结构的制造和测试结果,分析薄膜铌酸锂芯片上端面耦合结构的优化方案,为进一步实现低损耗耦合结构奠定基础。 展开更多
关键词 集成光学 端面耦合 逆锥形结构 薄膜铌酸锂 光子集成
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Science Letters:The Moore’s Law for photonic integrated circuits 被引量:2
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作者 THYLEN L. HE Sailing +1 位作者 WOSINSKI L. DAI Daoxin 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2006年第12期1961-1967,共7页
We formulate a “Moore’s law” for photonic integrated circuits (PICs) and their spatial integration density using two methods. One is decomposing the integrated photonics devices of diverse types into equivalent bas... We formulate a “Moore’s law” for photonic integrated circuits (PICs) and their spatial integration density using two methods. One is decomposing the integrated photonics devices of diverse types into equivalent basic elements, which makes a comparison with the generic elements of electronic integrated circuits more meaningful. The other is making a complex compo- nent equivalent to a series of basic elements of the same functionality, which is used to calculate the integration density for func- tional components realized with different structures. The results serve as a benchmark of the evolution of PICs and we can con- clude that the density of integration measured in this way roughly increases by a factor of 2 per year. The prospects for a continued increase of spatial integration density are discussed. 展开更多
关键词 Moore's Law photonic integrated circuit (PIC) photonic lightwave circuit (PLC) photonic integration density photonic filters photonic multiplexing
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