Abstract: A system for electro-writing of a polymer melt comprises a print-head and a feed mechanism configured to controllably feed solid polymer base material towards the print-head, wherein the print-head comprises a nozzle, a heater and an insulating spacer, wherein the print-head is configured to eject the polymer melt via the nozzle, wherein the nozzle is configured to be held at a selectable electric potential, wherein the heater is arranged in the print-head and proximate the nozzle, wherein the heater is configured to heat the solid polymer base material beyond its melting point to create the polymer melt in the print-head, wherein insulating spacer is arranged between the heater and the nozzle, wherein the insulating spacer electrically insulates the heater and the nozzle, and wherein the insulating spacer is at least partially surrounded by the heater.

Abstract: A system for electro-spinning/writing of a polymer material, the system comprising a print-head configured to eject the polymer material via a nozzle, a collector configured to receive the polymer material ejected from the nozzle, a displacement assembly configured to adjust a distance between the print-head and the collector, and a vat containing or configured to contain a liquid, wherein the vat is further configured to receive the collector, wherein the displacement assembly is configured to retract the collector and at least a part of the polymer material received by the collector into the liquid in the vat in accordance with a height of the received polymer material.

Abstract: A system may include an optical source and an adjustable spatial light modulator coupled to the optical source. The system may further include a medium coupled to the adjustable spatial light modulator, and an optical detector coupled to the medium. The optical detector may obtain various optical signals that are transmitted through the medium at various predetermined spatial light modulations using the adjustable spatial light modulator. The system may further include a controller coupled to the optical detector and the adjustable spatial light modulator. The controller may train an electronic model using various synthetic gradients based on the optical signals.

Abstract: A training node may include a first processor coupled to a first memory, and a second processor coupled to a second memory. The training node may further include a synthetic gradient processing unit (SGPU) coupled to a third memory, the first processor and the second processor. A portion of an electronic model may be disposed in the first memory, the second memory, and the third memory. The SGPU may generate a synthetic gradient signal based on an error data signal from the first processor and the portion of the electronic model. The synthetic gradient signal may update the electronic model during a training operation for the electronic model.

Abstract: The present description relates to a stabilized interferometric system comprising: a light source (210) for emitting an initial beam of coherent light; a spatial light modulator (220) configured to receive at least a first part of said initial beam and input data (203) and configured to emit a spatially modulated beam resulting from a spatial modulation of a parameter of said first part of said initial beam based on said input data; a scattering medium (230) configured to receive said spatially modulated beam; a detection unit (240) configured to acquire an interference pattern (IN0) resulting from the interferences between randomly scattered optical paths taken by the spatially modulated beam through the scattering material; a control unit (250) configured to vary the frequency of the laser source in order to at least partially compensate a change in said interference pattern resulting from a change in at least one environmental parameter.

Abstract: A system may include an optical source and an adjustable spatial light modulator coupled to the optical source. The system may further include a medium coupled to the adjustable spatial light modulator. The system may further include a beam splitter coupled to the optical source and the adjustable spatial light modulator. The beam splitter may generate a first optical signal and a second optical signal using the optical source. The system may further include an optical detector coupled to the beam splitter and the medium. The optical detector may obtain a combined optical signal including a resulting optical signal and the second optical signal. The resulting optical signal may be produced by transmitting the first optical signal through the medium at a predetermined spatial light modulation using the adjustable spatial light modulator.

Abstract: A system may include an optical source and an adjustable spatial light modulator coupled to the optical source. The system may further include a medium coupled to the adjustable spatial light modulator. The system may further include a beam splitter coupled to the optical source and the adjustable spatial light modulator. The beam splitter may generate a first optical signal and a second optical signal using the optical source. The system may further include an optical detector coupled to the beam splitter and the medium. The optical detector may obtain a combined optical signal including a resulting optical signal and the second optical signal. The resulting optical signal may be produced by transmitting the first optical signal through the medium at a predetermined spatial light modulation using the adjustable spatial light modulator.

Abstract: A system may include an optical source and an adjustable spatial light modulator coupled to the optical source. The system may further include a medium coupled to the adjustable spatial light modulator, and an optical detector coupled to the medium. The optical detector may obtain various optical signals that are transmitted through the medium at various predetermined spatial light modulations using the adjustable spatial light modulator. The system may further include a controller coupled to the optical detector and the adjustable spatial light modulator. The controller may train an electronic model using various synthetic gradients based on the optical signals.

Abstract: According to one aspect, the present description relates to a stabilized interferometric system comprising a light source (210) for emitting an initial beam (B0) of coherent light and a spatial light modulator (220) configured to receive at least a first part of said initial beam and input data (203), and configured to emit a spatially modulated beam (B0m) resulting from a spatial modulation of a parameter of said first part of said initial beam based on said input data. The stabilized interferometric system further comprises a scattering medium (230) configured to receive said spatially modulated beam and a detection unit (240) configured to acquire an interference pattern (IN0) in a first detection plane (241) at an output of said scattering material, wherein said interference pattern results from the interferences between randomly scattered optical paths taken by the spatially modulated beam through the scattering material.