Quantum Photonic Applications Group Presents: Multimode Fiber Optics: recent paradigm shifts driving its resurgence

    Friday, March 26, 2021 - 8:00am

    Join Via Zoom

    Phone: +1 602 753 0140     Access ID: 93072774351


    Multimode fibers theoretically support the transmission of photons in a variety of spatially, vectorially and topologically complex modes known to possess interesting linear and nonlinear properties. They share attributes with electrons in atomic systems, potentially yielding new modalities for light-matter interactions. However, it has long been presumed that fiber-propagation mixes modes, destroying any uniquely exploitable attributes they may possess. This conventional wisdom has been upended in the last decade, due to advances in signal conditioning and reception technologies, as well as from new insights gained into the topological properties of photons. Here, we describe how this recently accessible degree of freedom for encoding information in a photon has impacted applications as disparate as quantum communications, energy-efficient internet architectures, bio-imaging, and directed-energy systems.

    Speaker Bio(s): 

    Siddharth Ramachandran

    Electrical Engineering, Physics & Materials Science, Boston University, Boston, MA, USA

    sidr@bu.edu; http://people.bu.edu/sidr; +1-617-353-9881

    Dr Siddharth Ramachandran obtained his PhD in Electrical Engineering from the University of Illinois, Urbana-Champaign, in 1998. Thereafter, he joined Bell Labs as a Member of Technical Staff and subsequently continued with its spin-off, OFS Labs. After a decade in industry, Dr. Ramachandran moved back to academics in 2010, and is now a Professor in the Depts. of Electrical Engineering and Physics, and the Division of Materials Science, at Boston University. Prof. Ramachandran’s research focuses on the optical physics of guided waves. For his contributions, he was named a Distinguished Member of Technical Staff at OFS (2003), a fellow of OSA (2010), IEEE (2019) and SPIE (2019), an IEEE Distinguished Lecturer (2013-2015), a Distinguished Visiting Fellow of the UK Royal Society of Engineering (2016), and a Vannevar Bush Faculty Fellow (2019). He serves the optics community in several capacities, including, currently, as a topical editor for Optica.