Founder and Chief Technology Officer
Ramanand Tewari, PhD.
Ramanand is curently the Founder and Chief Technology Officer at CodeSScientific Photonics Chiplets, where he is leading the research, design and development of Photonic Chiplets for AI Data Centers and High-Performance Computing (HPC) on various material platforms, Silicon (Si), Silicon Nitride (SiN), Thin Film Lithium Niobate (TFLN) and Indium Phosphide (InP).
Prior to this, he was Chief Photonics Design Scientist at One Silicon Chip Photonics in Montreal, Canada, where he was responsible for research, design, fabrication and packaging of integrated photonics gyroscope chips on different material platforms for applications in autonomous vehicles, drones and robotics that also resulted in several international patents and publications.
He had been VP Technology of CodeSScientific Photonics, Ottawa for developing scientific codes for photonic components and advanced optical communication systems. He also held the position of Chief Scientist in integrated photonics at MillView Photonics, Ottawa on modelling and simulations of all types of passive components with various technologies such as Silicon Oxynitride, Silicon Nitride and Silicon.
He was a Collaborative Researcher and Developer in integrated photonics for POET Technologies, USA, Huawei Technologies, Ottawa and Rockport Networks, Ottawa for development of various active and passive components and devices for applications in Top of the Rack (TOR) data center interconnect, 100G & 400G pluggable optical transceivers and sub-GHz telecommunication grade integrated optical spectrometer operating over C-band.
Prior to that, he was a senior research and development scientist in integrated photonics at Optiwave Systems Inc., Ottawa and after that in various senior scientific and business development roles in integrated photonics at RSoft Design Group, NY, later on acquired by Synopsys Optical Solutions Group which has been recently acquired by Keysight Technologies and then Associate Director, Scientific, Technology Applications and Business Development in photonic devices at Simphotek Inc., NJ.
He collaborated for designing and simulations of various photonic components: customized and using PDKs alongwith photonic architectures with various fabs: The Silicon Nitride fabs: LioniX (Netherlands), LIGENTEC (Switzerland) and C2MI (Quebec, Canada), The Silicon fabs: Advanced Micro Foundry (Singapore), Tower Semiconductor (USA) and GlobalFoundries (USA), the Indium Phosphide fabs: Smart Photonics (Netherlands), HHI (Germany) and recently the Thin Film Lithium Niobate fab: Luxtelligence (Switzerland).
Prior coming to Canada in 2001, he also held the faculty positions at Indian Institute of Technologies at Kharagpur and Delhi in India and recently from March 2017 till December 2020, held a visiting researcher position in integrated photonics at Centre for Research in Photonics (CRPuO), University of Ottawa, Canada.
He received his Ph.D. degree in fiber and integrated optics from Indian Institute of Technology Delhi, India. He was a Post-Doctoral Researcher in integrated optics with Professor Klaus Petermann at Institute for Hochfrequenztechnik-Photonik, Technische Universität Berlin, Germany.
He has also been member of several International Advisory Committees of the OSA and IEEE sponsored conferences and workshops held in India, in the years, 2010, 2015, 2016, 2017 and 2018 and in the year 2021, he was the member of the International Industry Expert Committee for formation of Optics and Photonics Center at Indian Institute of Technology Delhi, India.
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Director of System Engineering
Shiva Kumar, PhD.
Shiva Kumar is the Director of System Engineering at CodeSScientific Photonics Chiplets, where he is leading the research, design and development of Photonic Chiplets for AI Data Centers and High-Performance Computing (HPC) on various material platforms, Silicon (Si), Silicon Nitride (SiN), Thin Film Lithium Niobate (TFLN) and Indium Phosphide (InP).
He worked at Corning Incorporated, New York as a Senior Research Scientist (1998-2001), and then as a Project Leader (2001-2003). He is currently also a Professor at McMaster University, Canada.
He holds 10 US patents in the field of fiber optics. In addition, recently, he has filed 4 US patents in the field of natural intelligence (NI). One of his patents became Corning product, ‘Metrocor’ for Metro optical networks which helped to extend the error-free transmission distance by ten-fold. Subsequently, he was awarded ‘R&D 100 award’ for the product design ‘Metrocor’ by R&D Magazine in 2001, ‘circle of excellence award’ from the magazine Photonics spectra in 2001, ‘outstanding individual contributor award’ by Corning Inc., 2002 and the citation stated that the Metrocor brought a revenue of 20 million dollars in Sept-Dec 2001 alone. His another patent aimed at increasing the power coupled to the fiber used in Fiber-to-the-home (FTTH) networks. This led to a Corning product ‘Nexcore’ which enabled 3.5 dB higher power coupled to the fiber compared to the conventional fibers. His patent on multi-core fibers (awarded in 2003) to allow space-division multiplexing did not draw much attention then, but now in 2024, Optical Fiber Conference (OFC) held at San Diego, there were two sessions dedicated to multi-core fibers. Dr. Kumar holds the first patent on the concept of multi-core fibers.
Recently, his research team has been doing research on machine learning/AI/Natural Intelligence (NI) and how to combine AI/NI technology with fiber optic technology to reduce the power consumption of the optical receivers and to lower the latency. Recently, he spent ten months in Tohoku University, Japan working on high-speed fiber optic networks. He set up a successful collaboration between his research team at McMaster and the team at Tohoku. His research team applied the NI software on the experimental data of Tohoku University and successfully demonstrated the performance improvement brought out by the NI technology for coherent fiber optic transmission.
Shiva Kumar received the MS (1990) and Ph.D. degrees (1994) in electrical communication engineering from Indian Institute of Science, India, and a Ph.D. degree (1997) in communications engineering from Osaka University, Japan. He was a Humboldt fellow at University of Jena, Germany, supported by Alexander von Humboldt Foundation from 1997-98.
He has authored a textbook on fiber optic communications (2014), edited a book on nonlinear fiber optics (2011) and has published about 120 papers in refereed journals, 38 keynote presentations/invited talks, 56 conference presentations, and 8 book chapters.
Dr. Kumar is a Fellow of the Optical Society of America (now optica) since 2019.