Wisconsin Alumni Research Foundation

Technology

Machining of Lithium Niobate by Laser Fracturing

Lithium niobate is used in the fabrication of a wide variety of optical and electro-optic devices, including optical modulators, switches, frequency shifting devices, polarized controllers and pulsed ...
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Leon McCaughan, Chad Staus | P02194US

Technology

Type II Quantum Well Laser Devices

Fiber optic transmission of data across large distances involves the use of laser transmitters that generally operate at three primary wavelengths: 850 nanometers, 1.3 microns and 1.55 microns. Minima...
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Luke Mawst, Nelson Tansu | P02243US

Technology

Semantically-Aware Network Intrusion Signature Generator

Network intrusion detection systems (NIDS) can help protect computer networks from worms, viruses and other malicious software. Today’s NIDS rely on a set of simple signatures to identify malici...
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Paul Barford, Somesh Jha, Vinod Yegneswaran, Jonathon Giffin | P05038US

Technology

High-Power-Gain, Bipolar Transistor Amplifier

Silicon is a relatively inexpensive material for making integrated power amplifiers for communications devices such as cell phones; however, these power amplifiers are generally limited to low power a...
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Zhenqiang Ma, Ningyue Jiang | P05260US

Technology

Scalable Monitor of Malicious Network Traffic

UW-Madison researchers previously described a system of analyzing malicious network traffic to automatically generate signatures that may be used by a network intrusion detection system (NIDS) to prot...
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Paul Barford, Vinod Yegneswaran, David Plonka | P05182US

Technology

Electro-Optic Optical Elements

Ferroelectric materials, such as crystalline lithium niobate, are very useful for fabricating a variety of optical and electronic devices, including optical switches and modulators, frequency switchin...
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Leon McCaughan, Thomas Kuech, Dovas Saulys, Vladimir Joshkin, Aref Chowdhury, Chad Staus | P02184US

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