Dit proefschrift is goedgekeurd door de promotoren: Contention resolution in optical packet-switched cross-connects / by Ronelle Geldenhuys. – Eindhoven : Technische Universiteit Eindhoven, 2007. Subject headings: photonic switching systems / optical information processing / semiconductor optical amplifiers / buffer storage. SUMMARY This thesis considers optical contention resolution in both al...

Introduction: It has been shown by Jung and Tonguz [1] that uplinks in personal communication system networks can be built using coaxial cable for link lengths < 0.6 – 1.4km, dependent on the cable loss. Their calculations were performed assuming cables with losses between 30 and 70dB/km at 850MHz. These low values can only be obtained using very expensive low loss cables with diameters > 1/2in...

We report on the fabrication of optical channel waveguides inside KY(WO4)2 crystals, both undoped and Yb-doped, for applications in compact solid-state lasers and three-dimensional photonic devices. Nonlinear absorption of femtosecond laser pulses has been employed in order to induce refractive-index changes in these crystals. The irradiation damage results in a decrease of the material density...

There are concerns that radically new fiber designs and network architectures will soon be required in order to keep up with exponential growth of internet traffic in the backbone network in a cost effective manner [1]. Spatial division multiplexing (SDM) schemes employing either multi core fibers (MCFs) or multi-mode fibers (MMFs) have been recently proposed and successfully demonstrated [2,3]...

A review of passive components based on optical microfibers is presented. KeywordsOptical fibre tapers; optical microfibers, fibre devices, optical fibre nanowires

Three Nordic National Metrology Institutes (NMIs) and one company participated in the Nordtest project no 1634-03 High Power Fibre Optic Calibration. The project was successful and the service of calibrating high power fibre optic detectors can now be offered by the three NMIs. Each of the NMIs has established traceability to their own national standards for optical power. The NMIs used the sam...

In this paper, we propose an optical millimetre wave radio-over-fibre (mm-wave RoF) system that uses a dual drive Mach Zehnder modulator (DD-MZM), which is biased at the maximum transmission biasing point, to generate an optical double sideband-suppressed carrier. The input to the DD-MZM are binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), 8-phase shift keying (8-PSK) and...