About us
About Princeton Lightwave Review
Turning photons into understanding.
We are an independent technology publication covering the photonic sensing systems that give machines the ability to perceive, measure, and navigate the physical world.
Why this publication exists.
The sensing industry is one of the most consequential and least understood sectors in technology. We exist to make it legible to engineers, investors, and decision-makers outside the photonics lab.
Every autonomous vehicle, precision-guided weapon, industrial robot, and aerial survey drone depends on the same fundamental capability: the ability to measure the three-dimensional world in real time. LiDAR and photonic sensing systems provide that capability. Yet despite their critical role, these technologies are covered by only a handful of specialist journals and trade publications, most of which are locked behind paywalls or buried in academic proceedings.
Princeton Lightwave Review was created to fill that gap. We publish in-depth technical analysis, market intelligence, and component-level supply chain reporting on the photonic sensing industry — written for engineers who build these systems, for executives who fund them, and for the analysts and procurement leaders who evaluate them.
Our coverage spans the full stack: from the semiconductor physics of single-photon detectors to the AI perception algorithms that interpret their output, from the defence procurement cycles that fund next-generation sensors to the automotive integration challenges that determine whether a LiDAR company lives or dies. We are not affiliated with any sensor manufacturer, automotive OEM, or defence contractor. Our editorial is independent.
Our Focus
The intersection of light, computation, and autonomous systems.
We cover six tightly connected domains: detection architectures (ToF, FMCW, Geiger-mode, flash, OPA, and solid-state scanning), automotive LiDAR (perception stacks, Tier 1 integration, and the camera-vs-LiDAR debate), defence and ISR sensing (military procurement, long-range reconnaissance, and targeting systems), photonic components (VCSELs, InGaAs detectors, SPAD arrays, and micro-optics supply chains), industrial and mapping applications (surveying, mining, agriculture, and construction), and compute and perception (edge inference, sensor fusion, point cloud processing, and the AI models that turn raw photon data into actionable decisions).
Our Editorial Approach
Component-Level Depth
We don’t just review finished products. We go inside the sensor — covering the laser sources, detector arrays, optical assemblies, and ASICs that determine what a system can actually do. Understanding the components is the only way to evaluate the claims made at the system level.
Supply Chain Realism
A sensor is only as good as the supply chain behind it. We track which foundries are producing automotive-qualified photonic components, where the bottlenecks are, and which companies are vertically integrated versus dependent on single-source suppliers.
Editorial Independence
We are not funded by sensor manufacturers, automotive OEMs, or defence contractors. We do not accept sponsored content or affiliate commissions on the technologies we review. Our readers get analysis, not advertorials.
A Note on Our Name
Princeton Lightwave: the company and the publication.
Princeton Lightwave Inc. was a Cranbury, New Jersey-based manufacturer of indium gallium arsenide (InGaAs) single-photon detectors and Geiger-mode LiDAR systems. Founded to commercialise defence imaging technology, the company became a pioneer in single-photon counting arrays for long-range 3D imaging. In 2017, Princeton Lightwave was acquired by Argo AI, a self-driving technology subsidiary of Ford Motor Company, to develop advanced LiDAR for autonomous vehicles. When Argo AI ceased operations in 2022, elements of the technology were absorbed by Ford and other entities.
This publication acquired the princetonlightwave.com domain after it expired and repurposed it as an independent editorial platform covering the broader photonic sensing industry. We are not affiliated with the original Princeton Lightwave Inc., Argo AI, Ford Motor Company, or any of their successor entities.
We chose to keep the name because it represents a meaningful chapter in the history of LiDAR technology — and because the domain carries a legacy of technical credibility in the photonics community. Our editorial is entirely original and independently produced.