Knowledge Centre
Find a document written by the best international scientists in our secure database.
24776 documents found.
Analysis of the resonance frequency measurement method of PICCs under influence of the nonlinear impedance of ICs
Analysis of the resonance frequency measurement method of PICCs under influence of the nonlinear impedance of ICs Wei Lin, Bernd Geck, Hermann Eul', Christian Lanschützer and Peter Raggam2 Abstract -- An RFID system operating at 13.56 MHz consists mainly of a Proximity Coupling Device (PCD) and a Proximity Integrated Circuit Card (PICC). The data transfer between PICC and PCD and the powering of t
Upgrading multimode channels for multi-Tb/s/inch bandwidth densities in board-level optical interconnects
Upgrading multimode channels for multi-Tb/s/inch bandwidth densities in board-level optical interconnects Daniel Emil'', Daniel Lenz, Jan-Marc Lehky2 , Bert Jan Offrein3 and Tobias Lamprecht3 Abstract -- To keep up with the increasing demand for data rate in high-end servers, and especially in configurations encompassing e.g. symmetric multi-processor (SMP) systems, I/O memories and ultra-fast sys
Passively temperature stable opto-electronic oscillators employing photonic crystal fibers?
Passively temperature stable opto-electronic oscillators employing photonic crystal fibers? A.S. Daryoush1, H.-W. Li', M. Kaba, G. Bouwmans3 , D. Decoster, J. Chazelas4 and F. Deborgies5 Abstract -- Stable microwave oscillators are realized based on high quality factor resonators and since a large quality factor could be achieved using small and long fiber delay lines, optical techniques are parti
Networking and technological considerations for optical packet switching
Networking and technological considerations for optical packet switching Attila Bader Abstract -- This paper investigates the feasibility and the technoIogical needs for high capacity end-to-end packet switched optical transport. The required and available technologies for contention resolution, optical header processing and optically controlled optical switching are discussed. Packet loss probabi
Linearity and chirp investigations on SOA as an external modulator in SCM systems
Linearity and chirp investigations on SOA as an external modulator in SCM systems Eszter Udvary1 and Tibor Berceli2 Abstract -- It is shown by numerical simulation and measurement that by using SOA as an external modulator, the device provides acceptable nonlinear distortion for SCM telecommunication systems. It demands more advanced amplifier-modulator working state planning. The temperature and
InGaAs/InP p-i-n photodiodes as efficient microwave generators
InGaAs/InP p-i-n photodiodes as efficient microwave generators Sergei A. Malyshev`, Alexander L. Chizh2 , and Yury G. Vasileuski3 Abstract -- Fully coupled mixed-mode electro-thermal physical model of high-speed p-i-n photodiode, which takes into account self-heating effects and is based on drift-diffusion scheme of charge carrier transport in semiconductor heterostructures and piecewise harmonic
Indoor coverage optimization for Hybrid Fiber Radio
Indoor coverage optimization for Hybrid Fiber Radio Lajos Nagy Abstract -- There is a growing interest recently in providing and improving radio coverage for mobile phones and WLANs inside buildings. The need of such coverage appears mainly in office buildings, shopping malls, train stations where the subscriber density is very high. The cost of cellular systems and also the one of indoor wireless
Fiber transmission behavior of millimeter-wave electro-optical upconversion systems with transmitter chirp
Fiber transmission behavior of millimeter-wave electro-optical upconversion systems with transmitter chirp Christian G. Schaeffer and Michael Sauer Abstract -- Millimeter-wave (mm-wave) transport systems based on electro-optical upconversion using a high-speed external modulator are significantly affected by the transmitter chirp, leading to complex signal transmission behavior over dispersive fib
Editorial
Editorial The goal of this Special Issue is to provide the readers with a collection of papers reporting state of the art achievements in the interdisciplinary field of microwave photonics. Photonics brings new functions to microwave systems such as long delay lines, fast spectrum analysis, frequency conversion, probing and control of microwave devices, low phase noise oscillators and ultra-fast a
Advances in external optical modulators for analog fiber link applications
Advances in external optical modulators for analog fiber link applications P. K. L. Yu', I. Shubin2 , X.B. Xie3 and W. S. C. Chang4 Abstract -- This paper presents an overview for the advances of the external optical modulators, in particular semiconductor electroabsorption modulator, for analog applications such as CATV, antenna rernoting and wireless communication systems. Research frontiers in