Optical fibre transmission lines

Optical Theorem for Transmission Lines

We present the application to transmission line systems of a new theory of the optical theorem that describes the energy budget of electromagnetic scattering in lossless wave propagation media. The insight gained by exploring this, simplest of the electromagnetic wave propagation systems from the point of view of the optical theorem, is important for understanding power budget of electromagneti...

Quantum-secured data transmission in urban fibre-optic communication lines

A.V. Duplinskiy, 2 E.O. Kiktenko, 3 N.O. Pozhar, M.N. Anufriev, R.P. Ermakov, A.I. Kotov, A.V. Brodsky, R.R. Yunusov, V.L. Kurochkin, A.K. Fedorov, 6, ∗ and Y.V. Kurochkin Russian Quantum Center, Skolkovo, Moscow 143025, Russia Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region 141700, Russia Steklov Mathematical Institute of Russian Academy of Sciences, Moscow 119991, Russi...

High-speed optical fibre transmission using advanced modulation formats

Evaluation of Optical Fibre Transmission Systems Based on Optical AM-PSK Signalling

Several optical AM-PSK partial response signalling (PRS) systems, also known as correlative level signalling, are evaluated through numerical simulation. Discussion is focussed to three-level PRS systems, namely duobinary, modified duobinary and dicode. Suitable transmitter implementation, taking advantage of the phase of the optical wave, allows the use of standard binary intensity modulation ...

Transmission Lines Transmission Lines Fabric Port

We describe our experiences verifying real communications hardware using machine-assisted proof. In particular we re ect on the errors found, problems encountered and the bottlenecks that slowed the progress of the proofs. We also note techniques which would alleviate the problems. Most of the problems we discuss only become signi cant when large designs are veri ed.