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来源机构: 每日科学
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发布日期: Oct 17, 2021
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Intelligent optical chip to improve telecommunications -- ScienceDaily

Science News from research organizations 1 . 2 . Intelligent optical chip to improve telecommunications . Date: October 15, 2021 Source: Institut national de la recherche scientifique - INRS Summary: Scientists have developed a smart pulse-shaper integrated on a chip. Share: FULL STORY From the internet, to fibre or satellite communications and medical diagnostics, our everyday life relies on optical technologies. These technologies use optical pulsed sources to transfer, retrieve or compute information. Gaining control over optical pulse shapes thus paves the way for further advances. advertisement PhD student Bennet Fischer and postdoctoral researcher Mario Chemnitz, in the team of Professor Roberto Morandotti of the Institut national de la recherche scientifique (INRS), developed a smart pulse-shaper integrated on a chip. The device output can autonomously adjust to a user-defined target waveform with strikingly low technical and computational requirements. An Innovative Design Ideally, an optical waveform generator should autonomously output a target waveform for user-friendliness, minimize the experimental requirements for driving the system and reading out the waveform, to ease online monitoring. It should also feature a long-term reliability, low losses, fibre connectivity, and maximal functionality. Among other things, practical imperfections, such as individual device fidelities, deteriorate the performances accessible from those initially designed or simulated for. "We find that evolutionary optimization can help in overcoming the inherent design limitations of on-chip systems and hence elevate their performance and reconfigurability to a new level," says the postdoctoral researcher. Machine Learning for Smart Photonics The team was able to achieve this device alongside with the recent emergence of machine learning concepts into photonics, which promises unprecedented capabilities and system performance. "The optics community is eager to learn about new methods and smart device implementations. In our work, we present an interlinked bundle of machine-learning enabling methods of high relevance, for both the technical and academic optical communities." The researchers used evolutionary optimization algorithms as a key tool for repurposing a programmable photonic chip beyond its original use. Evolutionary algorithms are nature-inspired computer programs, which allows to efficiently optimize many-parameter systems at significantly reduced computational resources. This innovative research was published in the journal Optica. "For us young researchers, PhDs and postdocs, it is of paramount importance for our careers that our research is visible and shared. Thus, we are truly grateful and overwhelmed with the news that our work is published in such an outstanding and interdisciplinary journal. It heats up our ambitions to continue our work and search for even better implementations and breakthrough applications. It endorses our efforts and it is simply a great honour," says Mario Chemnitz. The team's next steps include the investigation of more complex chip designs. The target is to improve the device performance, as well as the on-chip integration of the optical sampling (detection scheme). At terms, they could provide a single compact device ready-to-use. make a difference: sponsored opportunity Story Source: Materials provided by Institut national de la recherche scientifique - INRS . Original written by Audrey-Maude Vézina. Note: Content may be edited for style and length. Journal Reference : Bennet Fischer, Mario Chemnitz, Benjamin MacLellan, Piotr Roztocki, Robin Helsten, Benjamin Wetzel, Brent E. Little, Sai T. Chu, David J. Moss, José Aza?a, Roberto Morandotti. Autonomous on-chip interferometry for reconfigurable optical waveform generation . Optica , 2021; 8 (10): 1268 DOI: 10.1364/OPTICA.435435 . Cite This Page : MLA . APA . Chicago . Institut national de la recherche scientifique - INRS. "Intelligent optical chip to improve telecommunications." ScienceDaily. ScienceDaily, 15 October 2021. . Institut national de la recherche scientifique - INRS. (2021, October 15). Intelligent optical chip to improve telecommunications. ScienceDaily . Retrieved October 16, 2021 from www.sciencedaily.com/releases/2021/10/211015094722.htm Institut national de la recherche scientifique - INRS. "Intelligent optical chip to improve telecommunications." ScienceDaily. www.sciencedaily.com/releases/2021/10/211015094722.htm (accessed October 16, 2021). RELATED TOPICS Matter & Energy Optics . Telecommunications . Microarrays . Biometric . Computers & Math Computers and Internet . Neural Interfaces . Computer Science . Internet . advertisement RELATED TERMS Integrated circuit . Passive infrared sensors . Circuit design . Microchip implant (animal) . MRAM . Earth science . Game theory . Technology . 1 . 2 . 3 . 4 . 5 . RELATED STORIES A Smart Eye Mask That Tracks Muscle Movements to Tell What 'Caught Your Eye' . Aug. 20, 2020 ? Integrating first-of-its-kind washable hydrogel electrodes with a pulse sensor, researchers have developed smart eyewear to track eye movement and cardiac data for physiological and psychological ... Leap in Lidar Could Improve Safety, Security of New Technology . July 6, 2020 ? Researchers have developed a new silicon chip with major applications in lidar systems for self-driving cars and smart ... On-Chip, Electronically Tunable Frequency Comb . Mar. 18, 2019 ? Now, researchers have developed an integrated, on-chip frequency comb that is efficient, stable and highly controllable with ... Is a Stretchable Smart Tablet in Our Future? . Feb. 15, 2017 ? Engineering researchers have developed the first stretchable integrated circuit that is made entirely using an inkjet printer, raising the possibility of inexpensive mass production of smart ... FROM AROUND THE WEB ScienceDaily shares links with sites in the TrendMD network and earns revenue from third-party advertisers, where indicated. .

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