Radiation effects on optical data transmission systems

Radiation-hard/high-speed data transmission using optical links

The silicon trackers of the ATLAS experiment at the Large Hadron Collider (LHC) at CERN (Geneva) use optical links for data transmission. An upgrade of the trackers is planned for the Super LHC (SLHC), an upgraded LHC with ten times higher luminosity. We investigate the radiation-hardness of various components for possible application in the data transmission upgrade. We study the radiation-har...

Solar ultraviolet radiation effects on biological systems.

Optical Transmission Systems Based on Phase-Sensitive Amplifiers

The capacity and reach of today’s long-haul fiber optical communication systems is limited by amplifier noise and fiber nonlinearities. Conventional, phase-insensitive amplifiers (PIAs), have a quantum limited noise figure (NF) of 3 dB at high gain, meaning that with a shot-noise limited input signal the signal-to-noise ratio (SNR) is degraded by at least 3 dB. Phase-sensitive amplifiers (PSAs)...

Optical Transmission System for High Field Systems

Introduction: Interconnection problems between large number of coil elements and the scanner are critical, particularly in high field MRI. Moreover, SNR and RF safety issues are also significant concerns. Recent investigations on the analog optical transmission of MRI signals may alleviate this problem [1-3]. Although traditionally, the transmission of the MR signals is achieved by coaxial cabl...

An MT-Style Optical Package for Optical Data Transmission

An optical package for mounting VCSEL and PIN diodes for transmitting and receiving optical signals has been developed. The diodes couple to the fibers in a commercial MT connector. The package is quite compact with its physical size significantly smaller than that of the MT connector. This design simplifies the testing and assembly of the optical components because the MT connector with the lo...