Receiver with mutually coherent optical frequency combs

PP Kuo, S Radic - US Patent 10,411,810, 2019 - Google Patents
A receiver architecture for physically-assisted computing of transforms, such as discrete
Fourier transforms (DFT) and discrete Hilbert transforms (DHT), employs mutually-coherent …

Computationally-assisted multi-heterodyne spectroscopy

D Burghoff, Y Yang, Q Hu - US Patent 10,656,016, 2020 - Google Patents
According to one aspect, a multi-heterodyne system is disclosed, which comprises a first
laser source for generating multi-mode radiation having a frequency spectrum characterized …

System and method for receiver sensitivity improvement

A Pejkic, S Radic - US Patent 11,212,011, 2021 - Google Patents
(57) ABSTRACT A system and method for ultrashort signal detection adds an optical
weighting element upstream of a detector within a direct detection receiver. The optical …

Comb-assisted cyclostationary analysis

D Esman, V Ataie, PP Kuo, N Alic, S Radic - US Patent 10,523,329, 2019 - Google Patents
(57) ABSTRACT A photonically-assisted cyclostationary analyzer eliminates the need for
high-bandwidth digitization and real-time Fou rier processors by using mutually-coherent …

Systems and methods for optical frequency comb generation using a microring resonator

ST Chu, K Zhu - US Patent 9,891,500, 2018 - Google Patents
Abstract Systems and methods which provide for the generation of optical frequency combs
using a microring resonator optical frequency comb generator configuration are described. A …

Comb assisted spread-spectrum receiver and reception methods

D Esman, V Ataie, PP Kuo, N Alic, S Radic - US Patent 10,763,971, 2020 - Google Patents
A spread spectrum receiver and receiving methods are provided. Received data is
physically reconstructed in the optical domain using a pair of coherently coupled frequency …

Frequency comb for downhole chemical sensing

SG Bhongale, DJ Stark - US Patent 10,738,597, 2020 - Google Patents
The present disclosure relates to systems and methods for analyzing fluids. The method for
analyzing a chemical sample within a wellbore, contained within an interrogation device …

Generation of frequency combs and sinc-shaped nyquist pulse trains with a large bandwidth and tunable repetition rate

T Schneider - US Patent 9,190,797, 2015 - Google Patents
A method for generating an optical frequency comb with a defined number of frequency
comb lines with an adjustable spacing therebetween includes generating an input frequency …

Methods for performing dual-comb interferometry using a frequency offset relation

NB HÉBERT, J Genest, JD Deschênes… - US Patent …, 2020 - Google Patents
US10753801B2 - Methods for performing dual-comb interferometry using a frequency offset
relation - Google Patents US10753801B2 - Methods for performing dual-comb …

Two frequency comb fourier spectroscopy for chemical sensing

SG Bhongale, LE San Martin, T He - US Patent 11,275,022, 2022 - Google Patents
The present disclosure relates generally to a system and method for increasing the reliability
and data-rate transmis sion of information from a downhole device to the surface and from …