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Improved Performance Vertical Cavity Surface Emitting Laser

Improved performance apertures and mirrors to decrease losses and increase functionality in Vertical-Cavity Surface-Emitting Lasers (VCSEL).

Methods and Apparatus for Parallel Execution of a Process

Methods that define the operation of parallel computation for multiple-computer interaction and cloud computing.

High Performance Polymeric Material for Holographic Data Storage

A novel material applicable to holographic data storage. This technology features low fabrication costs and largely scalable production.

Loss Modulated Silicon Evanescent Lasers

Two novel alternative methods for modulating semiconductor lasers that enable much higher frequency modulation.

A Video Fingerprinting Method For Duplicate Detection

Copyright infringements and data piracy have become serious concerns for the ever growing online video repositories in recent years. The uploaded videos on commercial sites are mainly textually tagged. Tags are of little help in monitoring the content and preventing copy-right infringements. The watermarking approach and the fingerprinting approach have been used for detecting such infringements, however, there is still the need for fast algorithms for duplicate detection in large databases.

Optical Dispersion Monitoring Technique Using Double Sideband Subcarriers

The tremendous growth in Internet traffic has presented the need to scale networks far beyond current speeds, capacities, and performance levels. Optical fiber is capable of transmitting large amounts of data at high speeds without needing to periodically retransmit signals over long distances. Simultaneously transmitting optical signals over the same fiber from many different light sources that have properly spaced peak emission wavelengths can dramatically increase the information capacity of an optical fiber. In wavelength division multiplexing (WDM), sources are operated at different peak wavelengths to maintain the integrity of the independent messages from each source so that they can be subsequently converted to electrical signals at the receiving end. This system offers possible solutions to performance and scaling bottlenecks in Internet Protocol (IP) networks, as well as the potential for limited transparency to packet data-rate and format. However, current methods for monitoring channel performance and data degradation are not applicable to dynamically reconfigurable optical networks.

Quantum Computation With Quantum Dots And Terahertz Cavity Quantum Electrodynamics

A quantum computer processes quantum information, which is stored in "quantum bits" (qubits). The recent explosion of interest in quantum computation can be traced to Shor's demonstration in 1994 that a quantum computer could exponentially speed up factorization of integers. This application is of great interest in commerce and national defense because the difficulty in factoring large integers is the basis for public-key encryption. Algorithms that dramatically speed up other common tasks, such as searching a large database, have also been demonstrated.

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