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1. Fiber and its use
1.1 Different types of fiber
1.1.1 Single-mode and multimode fibers
The fibers currently used in transmission, both single-mode and multimode, are rotationally symmetrical dielectric guides made up of concentric layers with different optical properties. In an ideal fiber, the refractive index n depends only on the distance r from the axis. The graph n (r ) is called the fiber's index profile. Figure 1 gives some examples of index profiles....
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Fiber and its use
Propagation modes of a single-mode fiber
Bibliography
Conferences
Two major conferences are held each year, showcasing the latest advances in optical telecommunications research:
ECOC (European Conference on Optical Communications), which takes place in a European city in September. The website address is http://www.ecocxxxx.org where xxxx designates the...
Standards and norms
Recommendations concerning the various types of optical fiber for telecommunications, available on the International Telecommunication Union (ITU) website at http://www.itu.int/rec/T-REC-G.652/fr
Directory
Manufacturers – Suppliers – Distributors (non-exhaustive list)
A few major manufacturers share the worldwide market for optical fibers and cables for long-distance telecommunications networks. These "generalist" groups manufacture just about every type of fiber used in telecommunications, and are capable of producing thousands of kilometers of fiber.
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