NES Events
Career Fair
Date: Thursday, April 2nd 2026
Location: Terrace Lounge, George Sherman Union, 775 Commonwealth Ave, Boston, MA 02215
Schedule: 10:00 AM to 4:00 PM.
We collaborated with the Optica New England Section to invite leading companies from across the New England area to Boston University for a career fair, including MIT Lincoln Laboratory, Lightmatter, Teradyne, and others.
NES Talks
Date: Wednesday, February 11th 2026
Location: Boston University Photonics Center 8 St Marys St, Boston, MA 02215
Schedule
Networking & Pizza: 6:00 pm
Talk 7:00 pm
Speaker
Alexander Sludds received his B.S, M.Eng and Ph.D in Electrical Engineering and Computer Science from MIT in 2018, 2019 and 2023 respectively. Alex was an NSF graduate research fellow and has published in leading journals and conferences including Science, Nature Photonics, Science Advances and Physical Review X. Alex currently works at Lightmatter, where his interests focus on the modeling and simulation tooling for large scale photonic systems.
Lightmatter DWDM CPO: Enabling 100Tb/s+ Optical Engines
The demand for extreme-scale computing, intensified by the push toward increasingly capable AI systems, is driving the need for major advances in compute density and interconnect bandwidth. Co-packaged optics (CPO) offers a compelling path forward by closely integrating electronic compute elements with high-density photonic interconnects. At Lightmatter our Passage platform is addressing this need through optical engines with an order of magnitude more escape bandwidth than currently possible.
NES Talks
Date: Wednesday, Oct. 22nd, 2025
Location: PHO (8 St. Mary’s St)
Speaker
Daniel Shahar is a sixth-year Ph.D. candidate in the High-Dimensional Photonics Laboratory at Boston University, where he conducts research under the supervision of Dr. Siddharth Ramachandran. He was awarded the NSF Graduate Research Fellowship in 2022. In 2020, he earned B.S. degrees in Physics, Mathematics, and Electrical Engineering from the University of Florida.
Abstract
Shahar’s work investigates the generation of high-dimensional OAM states in multimode ring-core fibers (RCFs) using intermodal spontaneous four-wave mixing (SFWM). The stability and scalability of OAM propagation in RCFs are analyzed, followed by the principles of SFWM between guided modes. A versatile inverse-design algorithm enables complete control over the amplitude and phase of the pump field, supporting arbitrary OAM superpositions and processing of the generated states. The spectral correlations of the emitted photon pairs, described by the joint spectral amplitude (JSA), are shown to depend on mode selection and can be tuned nondestructively from correlated to uncorrelated to anti-correlated distributions. High single-photon performance is demonstrated with heralded second-order correlations below 0.005 and coincidence-to-accidental ratios above 4000, which to the best of current knowledge represent the highest values reported for fiber-based systems using avalanche photodetectors. Furthermore, through enforcement of JSA overlap, OAM correlations spanning 15 transverse dimensions in fiber are identified, each maintaining high single-photon performance. This result establishes a foundation for fiber-based high-dimensional transverse-mode entanglement and outlines a scalable pathway toward quantum networks.
