直播時(shí)間：2023年5月19日（周五）20:00-21:30
(資料圖片)
直播平臺(tái)：
科學(xué)網(wǎng)APP
https://weibo.com/l/wblive/p/show/1022:2321324903135859835105（科學(xué)網(wǎng)微博直播間鏈接）
科學(xué)網(wǎng)微博
科學(xué)網(wǎng)視頻號(hào)
北京時(shí)間2023年5月19日晚八點(diǎn)，iCANX Talks 第144期，本期邀請(qǐng)到中國(guó)科學(xué)院長(zhǎng)春光機(jī)所&德國(guó)柏林工業(yè)大學(xué)王大同（Dieter Bimberg）教授進(jìn)行分享綠色數(shù)據(jù)通信：5G之后的下一個(gè)挑戰(zhàn)。
【嘉賓介紹】
Dieter Bimberg
王大同
CAS at CIOMP&Technical University of Berlin
Green Data Communication: The Next Challenge after 5G
【Abstract】
Since 2014 novel consumer applications like Netflix, Block Chain,… not known to appear at the horizon at that time have led to a huge increase of internet traffic of 60%/year, much more than then originally predicted by companies like Cisco. This increased use of the internet is increasing its electrical power consumption due to increased data traffic mostly inside data centers. New data centers have crossed the 500 MW level. 5G with its big jump in data speed will be another enabler for new services, like LIDAR and more we cannot think about yet, and will increase the energy consumption to an extent not further tolerable. More research has to be done on the energy-efficiency of data traffic on all hierarchy levels.
2014年以來(lái)，Netflix、區(qū)塊鏈等當(dāng)時(shí)鮮為人知的新型消費(fèi)應(yīng)用使得互聯(lián)網(wǎng)流量正以每年60%的速度大幅增長(zhǎng)，遠(yuǎn)遠(yuǎn)超過(guò)當(dāng)初思科等公司的預(yù)測(cè)。由于數(shù)據(jù)中心的數(shù)據(jù)流量需求增長(zhǎng)，互聯(lián)網(wǎng)的大量使用增加了電力的消耗。新的數(shù)據(jù)中心的能耗已超過(guò)500兆瓦。5G數(shù)據(jù)速度的大幅度提升將成為新應(yīng)用的另一個(gè)推動(dòng)因素，如激光雷達(dá)等我們還無(wú)法想象的，這進(jìn)一步將能源消耗提高到了極高的程度。我們亟需對(duì)各層級(jí)數(shù)據(jù)流量的能源效率開展更深入的研究。
Inside data centers advanced design of active optical cables, their electronic driver and receiver circuits and the active photonic devices are suddenly in the focus, with the goal to minimize their combined power consumption. Vertical-cavity surface-emitting lasers (VCSELs) for 200+ Gbit/s single fiber data transmission across OM5 multimode fiber with a record heat to bit rate ratio (HBR) of only 240 fJ/bit x wavelength @ 50Gbit/s developed in our labs are presented.
為了實(shí)現(xiàn)綜合功耗最小化，數(shù)據(jù)中心內(nèi)的有源光纜及其電子驅(qū)動(dòng)和接收電路，和有源光子器件的先進(jìn)設(shè)計(jì)驟然成為研究熱點(diǎn)。我將介紹我們實(shí)驗(yàn)室開發(fā)的垂直腔面發(fā)射激光器（VCSELs），我們?cè)贠M5多模光纖上實(shí)現(xiàn)了200+ Gbit/s的單光纖數(shù)據(jù)傳輸速率，其熱比特率（HBR）創(chuàng)下紀(jì)錄，在50 Gbit/s的傳輸速率下僅為240 fJ/bit。
We recently discovered photon lifetime management to be the key to adopt the overall energy consumption to the bit rate of the data traffic (e.g. 25 Gb/s, 50 Gb/s,..). Completely novel GaAs VCSEL designs based on oxidizing apertures from dry etched holes filled subsequently with metal are presented. Much better heat dissipation leads to much larger saturation currents, larger output power and larger 3 dB cut-off frequencies. Single mode multiplexing and easy polarized emission is enabled. The novel approach is covered by multiple worldwide patents.
近期，我們發(fā)現(xiàn)調(diào)控光子壽命是降低特定數(shù)據(jù)流量（例如25Gb/s、50Gb/s等）下總體能耗的關(guān)鍵。我們基于干法蝕刻氧化物孔和進(jìn)一步的金屬填充，提出了全新的砷化鎵VCSEL設(shè)計(jì)。這一設(shè)計(jì)提升了散熱性能，可以得到更大的飽和電流、更大的輸出功率和更大的3dB截止頻率，并且能夠同時(shí)實(shí)現(xiàn)單模復(fù)用和簡(jiǎn)單的偏振發(fā)射。這種新方法已擁有多項(xiàng)國(guó)際專利。
【BIOGRAPHY】
Dieter Bimberg received the Ph.D. magna cum laude from Goethe University, Frankfurt, Germany. He held a Principal Scientist position at the Max Planck-Institute for Solid State Research, Grenoble, France, until 1979. After serving as a Professor of electrical engineering, Technical University of Aachen, Germany, he assumed the Chair of Applied Solid-State Physics at Technical University of Berlin. He is the Founding Director of its Center of Nanophotonics. He hold guest professorships at the Technion, Haifa, U.C. Santa Barbara, CA, USA, and at Hewlett-Packard in Palo Alto, CA. He was Distinguished Adjunct Professor at KAU, Jeddah 2012-2018. In 2018 he assumed the directorship of the “Bimberg Chinese German Center for Green Photonics” of the Chinese Academy of Sciences at CIOMP, Changchun.
Dieter Bimberg院士在德國(guó)歌德大學(xué)獲得博士學(xué)位。1979年以前，他曾在法國(guó)格勒諾布爾的馬克斯·普朗克固體研究所擔(dān)任首席科學(xué)家。在德國(guó)亞琛工業(yè)大學(xué)擔(dān)任電氣工程教授后，他擔(dān)任柏林工業(yè)大學(xué)應(yīng)用物理學(xué)系主任。他是其納米光子學(xué)中心的創(chuàng)始主任。他曾在以色列理工學(xué)院、美國(guó)加州大學(xué)圣巴巴拉分校和惠普公司擔(dān)任客座教授。2012-2018年，他在沙特阿拉伯阿卜杜勒阿齊茲國(guó)王大學(xué)擔(dān)任杰出兼任教授。2018年，他開始擔(dān)任中國(guó)科學(xué)院長(zhǎng)春光機(jī)所Bimberg中德綠色光子學(xué)研究中心的主任。
He is a member of the German Academy of Sciences Leopoldina, the EU Academy of Sciences, a Foreign Member of the Russian Academy of Sciences, the US Academies of Engineering and of Inventors, a Life Fellow of the American Physical Society and the Institute of Electrical and Electronics Engineers, IEEE, and a fellow of Chinese Optical Society. He is recipient of multiple international awards, like the UNESCO Nanoscience Award, the Max-Born Award and Medal of IoP and DPG, the Heinrich-Welker-Award, the Nick Holonyak Jr. Award, the Oyo Buturi and MOC Awards of the Japanese Society of Applied Physics, the Jun-Ichi Nishizawa Medal and Award of IEEE, and the Stern-Gerlach Award of DPG, to mention a few. He received honorary doctorates of the University of Lancaster, UK, and the St. Petersburg University of the Russian Academy of Sciences.
他是德國(guó)科學(xué)院院士、歐盟科學(xué)院院士、俄羅斯科學(xué)院外籍院士、美國(guó)工程院院士、美國(guó)發(fā)明院院士、美國(guó)物理學(xué)會(huì)終身會(huì)士、電氣電子工程師學(xué)會(huì)終身會(huì)士和中國(guó)光學(xué)學(xué)會(huì)會(huì)士。他獲得過(guò)多個(gè)國(guó)際獎(jiǎng)項(xiàng)，如聯(lián)合國(guó)教科文組織納米科學(xué)獎(jiǎng)、IOP和DPG聯(lián)合頒發(fā)的馬克斯-玻恩獎(jiǎng)、Heinrich-Welker獎(jiǎng)、Nick Holonyak Jr.獎(jiǎng)、日本應(yīng)用物理學(xué)會(huì)的Oyo Buturi和MOC獎(jiǎng)、IEEE的Jun-Ichi Nishizawa獎(jiǎng)，以及DPG的Stern-Gerlach獎(jiǎng)等等。他還獲得了英國(guó)蘭卡斯特大學(xué)和俄羅斯科學(xué)院圣彼得堡大學(xué)的榮譽(yù)博士學(xué)位。
He has authored more than 1500 papers, 71 patents and present applications, and six books. The number of times his research works has been cited exceeds 67,000 and his Hirsch factor is 113. His research interests include physics and technology of nanostructures, nanostructured photonic and electronic devices, and energy efficient data communication.
他發(fā)表了超過(guò)1500篇論文、71項(xiàng)專利和6本書，被引用量超過(guò)67000次，H因子高達(dá)113。他的研究興趣包括納米結(jié)構(gòu)物理與技術(shù)、納米結(jié)構(gòu)光子與電子器件以及節(jié)能數(shù)據(jù)通信。
標(biāo)簽：
