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1997
Conference Paper
Title
Photonic network design based on reference circuits
Abstract
The objectives of this presentation are to clarify specific terms like transparency and transverse compatibility, and then to derive guidelines as a first approach to an engineered photonic network. These guidelines are applied to the planning of a core network with 8 and 16 wavelength channels per link and verified by first numerical results. Complementary to a layered network architecture, our methodology is based on the use of a specific reference configuration. Degradation effects like amplifier noise, chromatic and polarization-mode dispersion, nonlinear self-phase modulation are covered as well as node crosstalk and the impact of optical frequency misalignments. Based on ITU-T recommendations, a classification of ranges of bit-rates and other preliminary specifications, our method allows us to assemble a general photonic network from its elements in a bottom-up scheme. As a result, we show that photonic networks can exhibit transparent optical paths, ranging from 400 to several thousands of kilometres. A number of 16 wavelength channels at individual bit-rates of up to 10 Gbit/s traversing a couple of crossconnecting nodes can be implemented, taking into account present-day optical components like amplifiers, standard fibres, multiplexers and demultiplexers, fibre switches as well as dispersion-compensating techniques. The potential benefits of such networks are to be seen in their inherent high capacity and in a high degree of flexibility, supporting various applications. Considering the results obtained so far, it can be concluded that a country of the size of Germany could be covered by a transparent photonic network.
Language
English
Keyword(s)
multiplexing equipment
optical crosstalk
optical fibre dispersion
optical fibre networks
optical fibre polarisation
optical modulation
optical noise
optical switches
phase modulation
wavelength division multiplexing
photonic network design
reference circuits
transparency
transverse compatibility
core network planning
wavelength channels
amplifier noise
chromatic dispersion
polarization-mode dispersion
nonlinear self-phase modulation
node crosstalk
optical frequency misalignments
itu-t
crossconnecting nodes
standard fibres
multiplexers
demultiplexers
fibre switches
dispersion-compensating techniques