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4. Determining the operating conditions of an optical system
An optical transmission system is a solution offered by a telecoms equipment supplier to a fixed or mobile telephone operator, or to an Internet service provider who requests it. The latter will have expressed the need to transmit a predefined quantity of information from one connection point of its network to another connection point along a known optical path. He will indicate to his supplier the characteristics of his fiber, inherited from a previous infrastructure or pre-installed according to his advice. In addition, he will provide him with the location of the amplifiers, the geography of which is rarely changeable.
For his part, the equipment supplier will have first developed a hardware and software platform, whose configuration and parameters he will have to adjust to meet the need. This platform can host several types of transmitting (data rates, modulation...
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Determining the operating conditions of an optical system
Modulation formats
Bibliography
Software tools
Optilux, free software for simulating optical transmission systems http://www.optilux.sourceforge.net/
VPI transmission Maker™, software suite for the simulation of optical components and systems, published by VPI photonics http://www.vpiphotonics.com/
...Websites
Jean-Michel Jonathan, lecture at Institut d'Optique GraduateSchool ParisTech, Guided wave optics http://paristech.institutoptique.fr/index.php?domaine=149
Events
Optical Fiber Communications Conference/National Fiber Optic Engineers Conference (OFC/NFOEC), an international conference held annually in the United States. http://www.ofcconference.org
European Conference on Optical Communications (ECOC) is an international conference held every September in a different European country....
Standards and norms
- National Telecommunications Union http://www.itu.int/ - ITU -
- Interfaces for optical transport networks (OTN) http://www.itu.int/rec/T-REC-G.709/fr - ITU-T G.709 -
- Spectral grids for wavelength-division multiplexing applications: DWDM dense grid http://www.itu.int/rec/T-REC-G.694.1/fr - ITU-T G.694.1 -
- Characteristics of single-mode optical cables and fibers http://www.itu.int/rec/T-REC-G.652/fr...
Regulations
French regulatory authority for electronic communications and posts, ARCEP http://www.arcep.fr/
Directory
Manufacturers – Suppliers – Distributors (non-exhaustive list)
Alcatel-Lucent http://www.alcatel-lucent.com
Ciena http://www.ciena.fr/
Cisco Systems http://www.cisco.fr
...
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