Argo Ai Gmbh

Princeton Lightwave, Inc.

Other

William Paul Mordarski

Evgenii Yuryevich Kotelnikov

Sabbir Sajjad Rangwala

Igor Kudryashov

Mark D Entwistle

Mark Itzler

A method for developing a map of objects in a region surrounding a location is disclosed. The method includes interrogating the region along a detection axis with a series of optical pulses and detecting reflections of the optical pulses that originate at objects located along the detection axis. A multi-dimensional map of the region is developed by scanning the detection axis about the location in at least one dimension. The reflections are detected via a single-photon detector that is armed using a sub-gating scheme such that the single-photon detector selectively detects photons of reflections that originate only within each of a plurality of zones that collectively define the detection field. In some embodiments, the optical pulses have a wavelength within the range of 1350 nm to 1390 nm, which is a spectral range having a relatively high eye-safety threshold and a relatively low solar background.

LiDAR system comprising a single-photon detector

A single-photon receiver and method for detecting a single-photon are presented. The receiver comprises a SPAD that receives a gating signal having a fundamental frequency in the 100 MHz to multiple GHz range. The receiver further comprises a two-stage frequency filter for filtering the output of the SPAD, wherein the filter has: (1) a notch filter response at the fundamental frequency; and (2) a low-pass filter response whose cutoff frequency is less than the first harmonic of the fundamental frequency. As a result, the frequency filter removes substantially all the frequency components in the SPAD output without significant degradation of the signal quality but with reduced complexity, cost, and footprint requirement relative to receivers in the prior art.

High-repetition-rate single-photon receiver and method therefor

An improved traveling wave amplifier is disclosed. The improvements to the traveling wave amplifier disclosed include designing the drain-to-drain and gate-to-gate transmission lines as coupled pairs thereby coupling energy back to the input from the output. The result is increased bandwidth without an increase in device count or resorting to a cascade configuration.

Traveling wave amplifier with distributed regenerative feedback between drain-to-drain transmission lines and gate-to-gate transmission lines for enhanced high frequency bandwidth

Growing community of inventors

Colts Neck, NJ, United States of America

William Paul Mordarski