FTTX Concepts and Applications [Gerd Keiser] on *FREE* shipping on qualifying offers. This book presents fundamental passive optical network. This book presents fundamental passive optical network (PON)concepts, providing you with the tools needed to understand,design, and build. FTTX concepts and applications / by Gerd Keiser. p. cm. — (Wiley series in telecommunications and signal processing) “A Wiley-Interscience publication.
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This book provides the basic material for an introductory senior-level course on the principles and applications of passive optical network technology. For more information about Wiley products, visit conceepts web site at www. The downstream frame size scales up to cells for a As another example that earlier chapters illustrate, the use of a nm wave- length for video services is an overlay to the basic voice and data services sent at and nm in a PON.
In contrast, the nm transmitter often is within an interface box that is located outdoors.
The corresponding transmitters using such sources vary from a simple inexpensive LED-based package for short-distance links to expensive laser diode-based conceptw that contain sophisticated electronics for controlling the tem- perature, wavelength stability, and optical output power level for long-distance DWDM links. The majority of connectors use a butt-joint coupling mechanism, as illustrated in Figure 5.
Basic EPON architecture and operational concept. Multiplexing packets of different sizes can cause delay in small packets. Znd is present in every communication system and represents a basic limita- tion on the transmission and detection of signals. Among the most important of these are: For a given material, as the wavelength of the incident photon becomes longer, the photon energy becomes less than that required to excite an electron from the valence band to the conduction band.
FTTX Concepts and Applications
This service class is intended for real-time applications such as packet-formatted voice, real-time and near-real-time video, and time-sensitive data. Photo courtesy of OFS; www.
As noted in Table 8. The POH supports performance monitoring by the end equipment, status, signal labeling, a tracing function, and a user channel. Typically, it is located about 10 km 30, ft from the central office or within 1 km ft from the subscribers in a housing neighborhood, a business park, or some other campus. The photodiode dark current arises from electrons and holes that are thermally generated at the pn junction of the photodiode.
Table of Contents Preface. Qnd error rate CER: A, Academic Press, New York, Data cells carry information including user data, signaling information, and ATM operation, administration, and management OAM information.
Prior to the standard wavelength spacing was GHz for 2. At that point the optical signal needs to get a power boost. Note that when the frequency spacings are uniform, the wavelengths are not spaced uniformly because of the relationship given in Eq.
Cross-sectional view of a fused-fiber coupler and its operation concept. Suppose that nW of optical power produces a multiplied photocurrent of 2. As described in Section A major design criterion of a WDM system is that the wavelengths must be spaced properly to avoid interference between adjacent channels.
The video traffic is sent independent of the ATM-encapsulated voice and data traffic.
Wiley-IEEE Press: FTTX Concepts and Applications – Gerd Keiser
Architecture of a typical passive optical network. For example, large capacitance values can cause a long decay tail to appear in the falling edge of the output pulse, thereby creating long fall times. Light rays with steep incident angles have longer path lengths than lower-angle rays. A guide ring controls how far the ferrule is inserted into the alignment sleeve. Since each subscriber link needs transmitters and receivers at each end, the system needs a total of 32 optical trans- ceivers.
Acronyms used for various types of premises. In addition, a light pulse from an optical source contains a certain slice of wavelength spectrum. Among the acronyms shown here and used in the technical and commercial literature are the following: However, there is a speed limit beyond which even the laser does not respond fast enough to the changes in an electrical signal.
The MHz span ranging over the frequencies from 50 to MHz is used for analog broadcast, such as analog video distribution or FM sound. Some illustrations of this hardware are given in Chapter