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Glass Optical Fibers for Automotive Ethernet

Speaker Bio: G. Mabud Choudhury, Standards Manager, OFS

Abstract: In this presentation, G. Mabud Choudhury of OFS presents his technical paper titled, “Glass Optical Fibers for Automotive Ethernet”. This paper features the latest updates on Automotive Ethernet application standards and the underlying technology, key use cases (such as autonomous vehicles), market and industry drivers. The technical paper summarizes the history of IEEE 802.3 Automotive Ethernet standards over the last 10 years, ranging from 10 Mb/s to now considering 100 Gb/s, with cabling solutions from copper twisted pair to plastic optical fiber to glass optical fiber. The extensive use of cost-effective glass optical fiber solutions in areas with challenging/harsh environments – temperature, chemical, EMI/EMC, mechanical, vibration, termination, flexing – for markets such as aerospace, fiber to the home, oil/gas temperature/strain measurement and factory automation are covered as background for the suitability of glass optical fibers for automotive applications.

The presentation focuses on the technical feasibility of Multimode Fiber (MMF) for Automotive Ethernet applications. The technical paper authors present thermal and mechanical testing data for high-temperature MMF cable, along with MMF-VCSEL (Vertical-Cavity Surface-Emitting Laser) link performance measured data at 25 Gb/s. Their key conclusion is that MMF is well suited to meet the technical requirements for >1 Gb/s data rate Automotive Ethernet applications. They expect high-growth Automotive Ethernet, with >1 Gb/s data rates, to be an important future market segment for MMF.

About the Presenter: G. Mabud Choudhury is Standards Manager for OFS. He contributes to IEEE 802.3 Ethernet, INCITS T11 Fibre Channel, and IEC Fibre standards. He is Vice Chair for IEEE P802.3db 100 Gb/s, 200 Gb/s, and 400 Gb/s Short Reach Fiber Task Force. Mr. Choudhury has an MS degree in Mechanical Engineering from Massachusetts Institute of Technology, and a BS degree in Mechanical Engineering from Duke University. He holds 32 US patents.

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