BANDWIDTH OPTIMISATION FOR SEMICONDUCTOR JUNCTION CIRCULATORS

Lexicographic maximin optimisation for fair bandwidth allocation in computer networks

This paper addresses the problem of bandwidth allocation in multi-application computer network environments. Allocations are determined from the solution of a multiple objective optimisation problem under network constraints, where the lexicographic maximin criterion is applied to solve the problem and guarantees fairness and efficiency properties to the solution. An algorithm based on a series...

Semiconductor Raman Amplifier for Terahertz Bandwidth Optical Communication

Semiconductor Raman amplifiers are useful for frequency selection in terahertz bandwidth and wavelength division multiplexing (WDM) systems with terabit capacity, as well as direct terabit optical communication systems. We have developed GaP–AlGaP Raman waveguides with micrometer-size cross sections. We have reduced residual optical loss of the waveguide by improvement of the fabrication proces...

Proximity effect in planar Superconductor/Semiconductor junction

We have measured the very low temperature (down to 30mK) subgap resistance of Titanium Nitride (Superconductor, Tc = 4.6K)/highly doped Silicon (Semiconductor) SIN junction (the insulating layer I stands for the Schottky barrier). As the temperature is lowered below the gap, the resistance increases as expected in SIN junction. Around 300mK, the resistance shows a maximum and decreases at lower...

Josephson Current in a Ferromagnetic Semiconductor/Semiconductor/Ferromagnetic Semiconductor Junction with Superconducting Contacts

Dynamically reconfigurable integrated optical circulators

DUANNI HUANG,* PAOLO PINTUS, CHONG ZHANG, PAUL MORTON, YUYA SHOJI, TETSUYA MIZUMOTO, AND JOHN E. BOWERS Electrical and Computer Engineering Department, University of California Santa Barbara, California 93106, USA Scuola Superiore Sant’Anna, via Moruzzi 1, 56124 Pisa, Italy Morton Photonics, 3301 Velvet Valley Dr, West Friendship, Maryland 21794, USA Department of Electrical and Electronic Engi...