Patents
Discriminative Remote Sensing And Surface Profiling Based On Superradiant Photonic Backscattering
Disclosed is a system and method for remote sensing, surface profiling, object identification, and aiming based on two-photon population inversion and subsequent photon backscattering enhanced by superradiance using two co-propagating pump waves. The present disclosure enables efficient and highly-directional photon backscattering by generating the pump waves in properly pulsed time-frequency modes, proper spatial modes, with proper group-velocity difference in air. The pump waves are relatively delayed in a tunable pulse delay device and launched to free space along a desirable direction using a laser-pointing device. When the pump waves overlap in air, signal photons will be created through two-photon driven superradiant backscattering if target gas molecules are present. The backscattered signal photons propagate back, picked using optical filters, and detected. By scanning the relative delay and the launching direction while the signal photons are detected, three-dimensional information of target objects is acquired remotely.
https://patents.google.com/patent/US20200194958A1
Yuping Huang
2017
Method and apparauts for quantum measurement via mode matched photon conversion
The present disclosure relates to a generally-applicable measurement technique based on coherent quantum enhancement effects and provides embodiments with nonlinear optics. The technique utilizes parametric nonlinear processes where the information-carrying electromagnetic quanta in a number of electromagnetic modes are converted phase coherently to signature quanta in a single mode or a few modes. The phase coherence means that while the quanta before conversion may have unequal or uncertain phase values across the modes, the signature quanta converted from those different modes have the (near) uniform phase. This can lead to significant increase in the signal to noise ratio in detecting weak signal buried in strong background noise. Applications can be found in remote sensing, ranging, biological imaging, field imaging, target detection and identification, covert communications, and other fields that can benefit from improved signal to noise ratios by using the phase coherent effect.
https://patents.google.com/patent/US20180149476A1
Yuping Huang
2017
Chip-integrated device and methods for generating random numbers that is reconfigurable and provides genuineness verification
A device for generation of genuine random numbers, uses quantum stochastic processes in optical parametric nonlinear media. The dimensionality of the random numbers is varied from 2 to over 100,000. Their statistical properties, including the correlation function amongst random numbers, are tailored using linear and nonlinear optical circuits following the parametric nonlinear media. Both the generation and manipulation of random numbers are integrated on a single nanophotonics chip. By incorporating optoelectric effects, fast streams of random numbers are created in custom statistical properties, which are updated or reconfigured in real time, such as at 10 GHz speed. The unpredictability of the random numbers is quantifying by evaluating their min-entropy. The genuineness of quantum random numbers is tested using both statistical tools and independently verified by measuring the quantum entanglement between the photons in real time.
https://patents.google.com/patent/US11442697B2
Yuping Huang,Yong Meng SUA, Jiayang Chen, Lac Thi Thanh Nguyen
2018
Approaches, apparatuses and methods for lidar applications based on- mode-selective frequency conversion
Approaches, apparatuses and methods for LIDAR applications based on mode-selective frequency conversion are disclosed. In one embodiment, a pulse generation unit includes a mode- locked fiber laser and optical fiber bandpass filters. In the second embodiment, a LIDAR transceiver unit based on a simple, bidirectional monostatic coaxial arrangement using off-the- shelf telecom-grade optical components includes optical fiber, fiber collimator, optical fiber circulator, optical fiber isolator and wavelength combiner. A frequency conversion detection system with single photon sensitivity includes a nonlinear optical material for frequency conversion, coupled with optimized pump pulses for efficient conversion and noise rejection, optical band pass filters for noise rejection and a single photon detection system for detecting the converted signal.
https://patents.google.com/patent/WO2019241582A1
Yuping Huang, Yong Meng SUA, Amin SHAHVERDI
2019
Systems and methods for quantum-secured, private-preserving computations
The present invention relates to methods for secure computation and/or communication. Entangled photons (118) are generated such that each participating party receives a series of optical pulses. Each party has private information (110, 112) which are never transmitted through public or private communication channels. Instead, each party converts their respective private information (110, 112) into measurement bases via an encryption process (114, 116) which are then applied to the entangled photons (118). After the measurement process, e.g., quantum frequency conversion (122, 124), reference indices are announced (124, 126) so that computation can be performed (128) without revealing the private information directly or indirectly.
https://patents.google.com/patent/CA3157965A1
Yuping Huang, Lac Thi Thanh NGUYEN
2020
Super ising emulator with multi-body interactions and all-to-all connections
An optical computation system includes a light source configured to produce a pump beam, an optical modulator configured to modulate the pump beam based on the modulation mask to generate a modulated beam, a non-linear medium configured to convert a portion of the modulated beam to a second harmonic (SH) beam and to produce an output including the SH beam and an unconverted portion of the pump beam, and a dichroic mirror configured to receive the output of the non-linear medium and to decouple the SH beam and the unconverted portion of the pump beam, a detector configured to detect a first optical power of the unconverted portion of the pump beam and to detect a second optical power of the SH beam, and a controller configured to generate an updated modulation mask based on the first and second optical powers for transmission to the optical modulator.
https://patents.google.com/patent/US20230185160A1
Santosh Kumar, He Zhang, Yuping Huang, Ting BU
2021
Devices and methods for low voltage optical modulation
An electro-optic modulation structure (110), a method for fabrication of the electro-optic modulation structure, and a method of optical modulation derived from an electro-optic modulation structure with low voltage of operation are disclosed. The low voltage operation of the electro-optic modulator is realized by designed electro-optic modulation structures that include the light confining waveguide (114), overclad layer (120) and modulating electrode structure (116) for applying modulation voltages that are directed towards a low voltage operation of the electro-optic modulation (110) device upon consideration of optimal optical loss.
https://patents.google.com/patent/WO2021226395A1
Yuping Huang, Yong Meng SUA, Mingwei JIN, Jiayang CHEN
2021
Machine learning mapping for quantum processing units
Some embodiments include a process, including obtaining, with a classical computer system, a mathematical problem to be solved by a quantum computing system, wherein: the quantum computing system comprises one or more quantum computers, the mathematical problem involves more variables than any of the one or more quantum computers have logical qubits, and solving the mathematical problem entails determining values of the variables; decomposing, with the classical computer system, the mathematical problem into a plurality of sub-problems, wherein decomposing the mathematical problem into the plurality of sub-problems comprises decomposing the mathematical problem with machine learning into quantum circuits; causing, with the classical computer system, the quantum computing system to solve each of the sub-problems and aggregate solutions to the sub-problems to determine a solution to the mathematical problem; and storing, with the classical computer system, the solution to the mathematical problem in memory.
https://patents.google.com/patent/US11436519B1
Raouf Dridi, Uchenna Chukwu, Jesse Berwald
2021
Variational analog quantum oracle learning
A method includes configuring a quantum annealer based on a parameter of a Hamiltonian and performing annealing using the configured quantum annealer to obtain output samples, wherein each sample of the output samples indicates state values of elements of the quantum annealer for a set of indices of the output samples. The method also includes providing, to an oracle, the output samples to obtain a set of oracle outputs. The method also includes determining an expectation based on the set of oracle outputs and updating a parameter indexed by the set of indices based on the expectation and a learning rate parameter.
https://patents.google.com/patent/US20230368063A1/
Nick CHANCELLOR, Raouf Dridi
2022