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Innovations from the wild world of optics and photonics

a silicon photonic platform

A silicon photonics platform used to support interconnections among excitable lasers and forming a photonic neural network on-chip.

Credit: Paul Prucnal, Department of Electrical Engineering, Princeton University


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photonic integrated circuit

A photonic integrated circuit (PIC) used to cancel radio-frequency interference being tested on an optical probe station. Probes provide electrical contact while a fiber launch stage measures output light from the PIC. The PIC is 2.5 mm x 1 mm in size.

Credit: Paul Prucnal, Department of Electrical Engineering, Princeton University


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An optical microscope image of a photonic integrated circuit

An optical microscope image of the PIC. This chip provides wide-bandwidth, radio-frequency interference cancellation using optical signal processing. All light used for processing is generated on-chip; no light ever enters or leaves the chip.

Credit: Paul Prucnal, Department of Electrical Engineering, Princeton University


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Microscopic image of a photonic integrated circuit

A scanning electron microscope image of a PIC designed to cancel radio-frequency interference. The inset shows an etched facet used for a monolithic Fabry-Perot laser. The right-hand plots show the photonic integrated circuit reducing and eliminating interference.

Credit: Paul Prucnal, Department of Electrical Engineering, Princeton University


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Close up view of a silicon photonics platform

A 100-micrometer view of a silicon photonics platform to support interconnection amongst excitable lasers forming a photonic neural network on-chip.

Credit: Paul Prucnal, Department of Electrical Engineering, Princeton University


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