News/Blog

Coherent self-control of free-space optical beams with integrated silicon photonic meshes

by on December 4, 2021 11:51 am
In technologies operating at light wavelengths for wireless communication, sensor networks, positioning, and ranging, a dynamic coherent control and manipulation of light fields is an enabling element for properly generating and correctly receiving free-space optics (FSO) beams even in the presence of unpredictable objects and turbulence in the light path. In this work, we use… Read more Coherent self-control of free-space optical beams with integrated silicon photonic meshes

Degrees of Freedom and Modes in Optics and Electromagnetics

by on November 17, 2021 1:30 am
Optics and radio-frequency electromagnetics now both need to work with many distinct channels for communications and sensing. A common framework, based on singular-value decomposition, clarifies the number of degrees of freedom and the true nature of orthogonal communications modes, and resolves many paradoxes. This approach leads to fundamental results in optics and electromagnetics, and maps… Read more Degrees of Freedom and Modes in Optics and Electromagnetics

The New Multimode Optics - Understanding and Exploiting Controllable Complexity

by on November 4, 2021 12:00 pm
Technologies like silicon photonics allow complex optics. Emerging applications in communications, sensing, and classical and quantum information processing demand complex controllable circuits. Recent advances in novel interferometric mesh architectures, new algorithmic approaches to control, including self-configuring and self-stabilizing circuits, and a clarified modal mathematical approach, promise sophisticated and highly functional circuits beyond previous optics. This… Read more The New Multimode Optics - Understanding and Exploiting Controllable Complexity

Optical interconnects to chips - why and how

by on October 20, 2021 5:30 pm
High-performance information processing is increasingly limited by getting enough information on and off electronic chips. Optics can solve the limiting density and power problems, though we need different approaches from previous optical communication systems. This tutorial given at the IEEE Photonics Conference explains why, and how we can transform performance. Invited Tutorial, IEEE Photonics Conference,… Read more Optical interconnects to chips - why and how

How to Count Modes and Deduce Limits in Optics

by on September 22, 2021 1:00 pm
This invited talk at Metamaterials 2021 discusses how we can use the new kind of “modes”, formally given by the singular value decomposition (SVD) of the coupling operator, to describe optical communications and linear optical devices efficiently and precisely. This approach uniquely gives all the orthogonal channels between input and output spaces. It leads to… Read more How to Count Modes and Deduce Limits in Optics

Getting to femtojoule optics – what physics and what technology?

by on June 9, 2021 10:31 am
This invited talk, given by David Miller at the Optical Fibers Conference (OFC) 2021 in the Symposium on Emerging Photonic Technologies and Architectures for Femtojoule per Bit Optical Networks, explains how we get the total energy per bit communicated into the femtojoule range. This would transform the power dissipation of large systems like data centers.… Read more Getting to femtojoule optics – what physics and what technology?

Self-configuring silicon photonics systems and applications

by on March 18, 2021 2:06 pm
David Miller delivered this invited talk on self-configuring photonics at the Photonics West conference (an online meeting). “Self-configuring silicon photonics systems and applications,” SPIE OPTO, Silicon Photonics XVI, Proceedings Volume 11691, Silicon Photonics XVI; 116910F (2021), March 5, 2021

How light could transform computing

by on March 18, 2021 2:01 pm
February 10, 2021 This video is a podcast in the Stanford University School of Engineering “The Future of Everything” series, hosted by Russ Altman. In this episode David Miller discusses how light has the potential to transform computing.

"Nature" perspective - Inference in artificial intelligence with deep optics and photonics

by on December 9, 2020 3:26 pm
G. Wetzstein, A. Ozcan, S. Gigan, Shanhui Fan, D. Englund, M. Soljačić, C. Denz, D. A. B. Miller and D. Psaltis “Inference in artificial intelligence with deep optics and photonics,” Nature 588, 39-47 (2020) https://doi.org/10.1038/s41586-020-2973-6 Open access link https://rdcu.be/cbBRj

A new way of making, using and understanding optics

by on November 10, 2020 4:43 pm
“A new way of making, using and understanding optics,” Annual Meeting of the International Max Planck Research School – Physics of Light on Oct. 21, 2020, Erlangen, Germany (virtual conference).