Optical amplifiers
Optical amplifiers
The development of low-loss optical silica fibres and reliable semiconductor laser sources in the early 1970s have enabled the practical realisation and massive deployment of optical-fibre communications worldwide. However, high bit-rate transmission is severely limited by the fibre residual loss and dispersion [1]. Fibre non-linearities, on the other hand, can further limit high bit rates over long distances [2]. Figure 5.1 shows a typical attenuation and dispersion spectrum of single-mode, standard-telecommunication fibres (STF) and dispersion-shifted fibres (DSF). In the second telecommunications window (centered around 1.31 µm), STFs exhibit very low dispersion and propagation losses of about 0.35 dB/km. Use of DSFs can shift the zero dispersion point in the third telecommunication window (centered around 1.55 µm), where the propagation loss is about 0.2 dB/km.
151-196
Zervas, Mikhail N.
1840a474-dd50-4a55-ab74-6f086aa3f701
van den Hoven, Gerlas
99f41b4c-403e-4103-863e-9aa32c9a0883
2001
Zervas, Mikhail N.
1840a474-dd50-4a55-ab74-6f086aa3f701
van den Hoven, Gerlas
99f41b4c-403e-4103-863e-9aa32c9a0883
Zervas, Mikhail N. and van den Hoven, Gerlas
(2001)
Optical amplifiers.
In,
Grote, Norbert and Venghaus, Herbert
(eds.)
Fibre Optic Communication Devices.
(Springer Series in Photonics)
Springer Berlin, .
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Abstract
The development of low-loss optical silica fibres and reliable semiconductor laser sources in the early 1970s have enabled the practical realisation and massive deployment of optical-fibre communications worldwide. However, high bit-rate transmission is severely limited by the fibre residual loss and dispersion [1]. Fibre non-linearities, on the other hand, can further limit high bit rates over long distances [2]. Figure 5.1 shows a typical attenuation and dispersion spectrum of single-mode, standard-telecommunication fibres (STF) and dispersion-shifted fibres (DSF). In the second telecommunications window (centered around 1.31 µm), STFs exhibit very low dispersion and propagation losses of about 0.35 dB/km. Use of DSFs can shift the zero dispersion point in the third telecommunication window (centered around 1.55 µm), where the propagation loss is about 0.2 dB/km.
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Published date: 2001
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Local EPrints ID: 78934
URI: http://eprints.soton.ac.uk/id/eprint/78934
PURE UUID: aea9861e-aa13-4d05-9705-d74f8e47a5c2
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:35
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Contributors
Author:
Gerlas van den Hoven
Editor:
Norbert Grote
Editor:
Herbert Venghaus
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