Netradyne, Inc.

Sandia Corporation

National Technology & Engineering Solutions of Sandia, LLC

Other

Jonathan Albert Cox

David Jonathan Julian

Michael Campos

Arvind Yedla

Veeresh Taranalli

Peter Thomas Rakich

Zheng Barton Wang

Robert L Jarecki, Jr

Heedeuk Shin

Venkata Ramanan Venkatachalam Jayaraman

Venkata Sreekanta Reddy Annapureddy

Anthony L Lentine

Adam David Kahn

Ryan Camacho

Wenjun Qiu

Badugu Naveen Chakravarthy

Aleem Siddiqui

Andrew Lea Starbuck

The present disclosure provides devices, systems and methods for mapping of traffic boundaries.

Traffic boundary mapping

A neural network is configured to process image data captured by a vehicle-mounted camera. The neural network includes common processing layers (a trunk) and separate, parallelizable processing layers (branches). An object detection branch of the neural network is trained to detect objects that may be visible from the vehicle-mounted camera, such as cars, trucks, and traffic signs. A curve determination branch is trained to detect and parameterize salient curves, such as lane boundaries and road boundaries. The curve determination branch itself is configured with a trunk and branch architecture, having both common and separate processing layers. A first branch computes a likelihood that a curve is present in a given location of the image data and a second branch further localizes the curve within the given location if such a curve is present. Training of the different branches of the neural network may be decoupled.

System and method of determining a curve

The various technologies presented herein relate to various hybrid phononic-photonic waveguide structures that can exhibit nonlinear behavior associated with traveling-wave forward stimulated Brillouin scattering (forward-SBS). The various structures can simultaneously guide photons and phonons in a suspended membrane. By utilizing a suspended membrane, a substrate pathway can be eliminated for loss of phonons that suppresses SBS in conventional silicon-on-insulator (SOI) waveguides. Consequently, forward-SBS nonlinear susceptibilities are achievable at about 3000 times greater than achievable with a conventional waveguide system. Owing to the strong phonon-photon coupling achievable with the various embodiments, potential application for the various embodiments presented herein cover a range of radiofrequency (RF) and photonic signal processing applications. Further, the various embodiments presented herein are applicable to applications operating over a wide bandwidth, e.g. 100 MHz to 50 GHz or more.

Guided wave opto-acoustic device

A radio-frequency photonic devices employs photon-phonon coupling for information transfer. The device includes a membrane in which a two-dimensionally periodic phononic crystal (PnC) structure is patterned. The device also includes at least a first optical waveguide embedded in the membrane. At least a first line-defect region interrupts the PnC structure. The first optical waveguide is embedded within the line-defect region.

On-chip photonic-phononic emitter-receiver apparatus

Methods and systems for stabilizing a resonant modulator include receiving pre-modulation and post-modulation portions of a carrier signal, determining the average power from these portions, comparing an average input power to the average output power, and operating a heater coupled to the modulator based on the comparison. One system includes a pair of input structures, one or more processing elements, a comparator, and a control element. The input structures are configured to extract pre-modulation and post-modulation portions of a carrier signal. The processing elements are configured to determine average powers from the extracted portions. The comparator is configured to compare the average input power and the average output power. The control element operates a heater coupled to the modulator based on the comparison.

Power meter ratio method of stabilizing a resonant modulator

The resonant frequency of an optical micro-resonator may be controlled by 'locking' an operating frequency/wavelength of the resonator using CMOS compatible electronic components.

Systems and methods for controlling an operating wavelength

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Albuquerque, NM, United States of America

Jonathan Albert Cox