US 12,596,028 B2 · Method and system for non-interferometric quantum photonics vibrometry

Abstract

Approaches, apparatuses and methods for single photon sensitive, non-interferometric photonics vibrometry applications based on quantum parametric mode sorting, optical gating and single photon counting are disclosed. In one embodiment, a controller module includes a photon detection unit, a pulse generator unit, a time synchronization unit, a data acquisition and processing unit and a central controller unit. In the second embodiment, a probe module with beam raster scanning ability includes an optical transceiver unit based on a bidirectional monostatic coaxial arrangement using off-the-shelf optical components and an optical beam steering device.

Claims29

Dependent claims

A method for remote vibration and acoustic measurement, comprising the steps of:

creating a probe signal;
creating a pump optical pulse;
collimating said probe signal;
transmitting said probe signal to a target;
receiving a backscattered signal from said target;
temporally aligning said pump optical pulse with said backscattered signal;
upconverting said backscattered signal to obtain a frequency upconverted backscattered signal;
performing picosecond time gating detection and quantum parametric mode selection on said frequency upconverted backscattered signal to obtain photon counting data;
and
obtaining vibration and/or acoustic measurement data from said photon counting data.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/899,493Filed 30 Aug 2022 · us provisional application

Priority

30 Aug 2021

Published

US 2023/0288248 A114 Sep 2023

Granted

7 Apr 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

G01H 9/004
Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means: using fibre optic…
G01H 9/00
Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive
H01S 3/0071
Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser…
H01S 3/094026
By coherent light: for synchronously pumping, e.g. for mode locking

Method and system for non-interferometric quantum photonics vibrometry

Life of this patent

Method and system for non-interferometric quantum photonics vibrometry

Life of this patent

Abstract

Claims29