VCSEL Journal Literature Retrieval and Analysis -2022 edition

2022-05-06 0 By

VCSEL (Vertical cavity surface emitting laser) is a kind of semiconductor laser, the laser direction is perpendicular to the semiconductor substrate surface, the laser beam is circular symmetry.The main structure of VCSEL is composed of two distributed Bragg mirrors (DBR) of P type and N type and the active region in the middle.VCSEL cavity is similar in length and wavelength, easy to achieve single longitudinal mode excitation, and has excellent beam quality, suitable for data communication and various sensing fields.In recent years, 3D imaging and sensing applications drive the development of VCSEL industry.In 2017, VCSEL array was first introduced into Apple iPhone X as a light source for 3D face recognition.This also brought fire to the whole VCSEL market, start-up companies emerge in endlessly, and industrial integration is in full swing.In 2020, addressable VCSEL arrays first entered Apple’s new iPad Pro tablet and iPhone 12 Pro series of smartphones as a light source for consumer LiDAR.Looking to the future, VCSEL market scale will continue to maintain a momentum of rapid growth under the intelligent demand of mobile phone and automobile two terminal products.We expect android smartphone rear-mounted 3D cameras, as well as lidar outside the car and in-vehicle surveillance (such as driver monitoring systems) to accelerate.VCSEL trends for sensing applications (Source:In order to further study VCSEL research and development history and technical status quo, Mems Consulting searched and analyzed VCSEL journal literature, and thus perspective the technical layout of the global VCSEL field and national and regional RESEARCH and development strength, mining the advantages of VCSEL research institutions and experts and scholars.So as to provide meaningful reference for VCSEL related practitioners’ technical research, product innovation, industry-university-research cooperation.This report provides an Excel journal literature database, which contains 3553 English journal literature and 420 Chinese journal literature databases related to VCSEL.The journal literature database supports multi-field search, including author, institution, year of publication, title, keywords, abstract, citations, journal name, volume issue number, and page number.According to the statistics and analysis of Mems Consulting, the annual publication volume of VCSEL English journal literature can be divided into three development stages: 1988-1997: from the technological embryonic stage to the rapid growth stage.1998-2007: Stable development period, the annual number of articles kept above 130.2008-2021: Oscillating decline period, from more than 130 articles published every year gradually decreased to about 100.Among 3553 articles in English journals, the number of articles on chip design, manufacturing methods (including epitaxial), packaging design and/or packaging methods, testing methods and reviews were 2351, 714, 20, 863 and 31 respectively (note: a single journal article may involve multiple links).It can be seen that VCSEL research mainly focuses on chip design.Combined with “keywords occurrence times, total current area map, and research directions of major research institutions”, Mems Analyzed the VCSEL research directions with high attention in the past five years:High power VCSEL, single mode VCSEL, HCG VCSEL, tunable VCSEL, polarization characteristics of VCSEL, high-speed VCSEL, and relevant research institutions are given.This helps VCSEL enterprises to find suitable scientific research institutions for industry-university-research cooperation and achievement transformation, and maintain the leading of its products and technologies.Research direction of VCSEL with high attention in recent five years (source: Mems Consulting) National and regional R&D strength According to the retrieval and analysis of Mems Consulting, the number of VCSEL English journal articles published mainly concentrated in the United States, Europe (a hundred flowers bloom) and East Asia (China, Japan and South Korea).Among them, the Number of papers published by the United States was 1,035, and the cited times was 24,698, leading by far.In terms of journal literature quality, the citation times per paper in the United States is 23.86 (ranking the first), and Belgium, Germany and Japan are close to it.The H index of VCSEL in the United States is 69, which shows that the United States leads the world in the number of highly cited literatures. Germany and Japan rank second and third respectively.Mems consulting analyzes the academic strength of major countries and regions from five indicators: the number of publications, the quality of literature, the influence of authors, the strength of research institutions, and the strength of national support.Among them, the ACADEMIC strength of the United States, Germany and Japan in the field of VCSEL is in a leading position in the world.Taking the comparative analysis between China and the United States as an example, we find that although China’s support for VCSEL field is greater than that of the United States (publications funded by The National Natural Science Foundation of China account for 61.47% of China’s publications), the Academic strength of the United States is significantly higher than that of China.Comparison of Academic Strength between China and the United States in VCSEL FieldRend and maim, consulting), the leading research institutions in the field of VCSEL were identificated top ten research institutions for the Tokyo university of technology (Japan), rhodes university of science and technology (Poland), the free university of Brussels (Belgium), sandia national laboratories (USA), the university of Illinois at urbana-champaign – champagne (USA), the university of California, Santa Barbara (USA), the nationalYangming Jiaotong University (Taiwan, China), Technical University of Berlin (Germany), University of Ulm (Germany), Technical University of Munich (Germany).Of these, the US has three and Germany has three.If the focus is on the domestic, the Semiconductor Institute of Chinese Academy of Sciences, Beijing University of Technology, the president of the Chinese Academy of Sciences chunguang Institute of Mechanical Science and Technology in the number of papers in the front.The number of publications of the main authors of VCSEL (source:According to the research of mems Consulting on journal literature quality, sandia National Laboratory and University of California, Santa Barbara are in a leading position in the world in terms of citation times, citation times per paper and VCSEL H index, indicating that they have strong scientific research strength.If the focus is on the domestic, the Semiconductor institute of Chinese Academy of Sciences has been cited times, VCSEL H index leading.According to the study of high-yield VCSEL authors by Memes Consulting, Kent D. Choquette, an American expert and scholar, has published 125 papers and been cited 4310 times, with an average cited times of 34.48, and H index of 35 in VCSEL, both ahead of other authors.It shows that Kent D. Choquette has a strong academic influence in the VCSEL field.In terms of cited times per paper, Kent D. Choquette is followed by Larry A. Coldren from The United States and Rainer Michalzik from Germany (both of them have cited more than 30 times).From the perspective of VCSEL H index, three experts and scholars tied for the second place: Fumio Koyama from Japan, Larry A. Coldren from the United States and Krassimir Panajotov from Belgium.If the focus is domestic, wang Lijun and Ning Yongqiang of the Chunguang Institute of Mechanical Engineering, president of the Chinese Academy of Sciences, lead other Chinese experts and scholars in terms of the number of articles published.1. VCSEL concepts and key technologies include laser, VCSEL, VECSEL concepts, VCSEL key technologies, LED, VCSEL, EEL principles and differences.2. VCSEL journal literature retrieval and analysis method includes retrieval and analysis process, literature retrieval concept, retrieval scope, and retrieval and analysis tools.3. The VCSEL global journal literature retrieval and analysis content including data sources and the retrieval strategy, annual number trend analysis, classification analysis, national and regional analysis (number, cited papers, cooperation), funded institution analysis, journal type analysis, the author analysis/affiliation (number, cited papers, cooperation).Keywords co-occurrence analysis, comparative analysis of national and regional academic strength.4. VCSEL Chinese journal literature retrieval and analysis includes data sources and retrieval strategies, annual publication trend analysis, technical classification analysis, fund type analysis, journal type analysis, author/affiliated institution analysis (publication volume, citations, cooperation), keyword co-occurrence analysis.5. VCSEL highly cited journal literature introduction content includes VCSEL highly cited journal literature index, each journal literature introduction (including title, author, affiliation, abstract, citation times, published journal, DOI).6. The content of the global leading research institutions in VCSEL field includes the distribution map and index of the global leading research institutions in VCSEL field, and the introduction of each research institution (including the institution name, VCSEL related departments/laboratories, institution profile and institution official website).7. The content of China’s leading research Institutions in VCSEL field includes the distribution map and index of China’s leading research institutions in VCSEL field, and the introduction of each research institution (including institution name, VCSEL related departments/laboratories, institution profile, and institution website).8. Contents of global experts and scholars in VCSEL field include index of global famous experts and scholars in VCSEL field, introduction of each expert and scholar (including name, institution, position, scientific research field, award and email).9. China Experts and scholars in VCSEL field includes index of China famous experts and scholars in VCSEL field, introduction of each expert and scholar (including name, institution, position, research field, award and email).10. VCSEL Academic Conference and Book introduction contents include VCSEL related international academic conference and domestic academic conference, VCSEL classic book introduction.To purchase the VCSEL Journal Literature Retrieval and Analysis – edition 2022 report, please email: wangyi#memsconsulting.com (# replaced with @).