Optische Kommunikationsnetze (OptK)2.5 ECTS
(englische Bezeichnung: Optical Communication Networks)
(Prüfungsordnungsmodul: Optische Kommunikationsnetze)

Lehrveranstaltungen:

• • Optische Kommunikationsnetze
    (Vorlesung, 2 SWS, Herbert Haunstein, Fr, 16:15 - 17:45, 05.025)

Inhalt:

Global communication is accomplished over a trans-continental fiber-optic transport network. End users worldwide access this network over copper cable (DSL), by wireless technologies like WLAN, GSM, LTE (4G). After a short distance ("the last mile") data streams from many users are aggregated (e.g. by IP routers) into higher data rate transport streams, which are then carried over cost-efficient and highly reliable optical connections. Rapid increase of data traffic has quickly evolved from Gigabit Ethernet (1GbE) to 10GbE and 100GbE data rates. To operate optical networks on a global scale, standards like OTN (Optical Transport Network) have been developed to provide high capacity links by use of multiple wavelengths (wavelength division multiplex, WDM) together with operations and maintenance (OAM) functions. Automated protection and restoration schemes provide a high level of availability and can guarantee carrier-grade Quality of Service (QoS). Future data rate increase is driven by video streaming as well as the introduction of 5G wireless technology and the Internet of Things (IoT).

The course shall provide a fundamental understanding of modern fiber optic networks from data center interconnects through metropolitan area to long-distance and submarine networks.

1) Introduction - Evolution of optical networks
2) Network layers - Internet Protocol - TCP/IP
3) Label switching - MPLS - MPLS-TP
4) Quality of Service - traffic classification - resource allocation
5) Ethernet - switching and physical transport
6) Optical Transport Network - OTN
7) Optical fiber properties - optical amplification
8) Optical transmitter - laser & modulator
9) Optical receiver - photo detection - Clock&Data recovery - Bit Error Ratio calculation
10) Modulation formats - transmission - margin allocation
11) Coherent detection - digital signal processing
12) Optical networks - optical switching
13) Optical transmission system design – achievable data rate versus transmission distance

Lernziele und Kompetenzen:

Students ...

• explain the functional building blocks of optical networks

• elaborate on the different tasks provided by the logical/control plane (routing), the physical layer and transmission/data plane of optical networks

• refer which standardization organization contributes to the different function of optical networks

• explain the purpose of different protocols that interact along an end-to-end communication channel

• describe technologies for E/O and O/E conversion and optical switches

• calculate the achievable transmission distance for a given modulation format

• express the design challenges of future optical systems for data center interconnects, metro-regional, core, ultra-long-haul and submarine networks
  

Literatur:

• G.P. Agrawal: Fiber optic communication systems, Wiley, 1992, (new 1997)

• G.P. Agrawal, Nonlinear fiber optics, Academic Press, 1995

• R. Rawaswami: Optical Networks - A practical perspective, Academic Press, 1998

• U. Black: Optical Networks - Third generation transport systems, Prentice Hall, 2002

• I.P. Kaminow: Optical Fiber Telecommunications IV A & B, Academic Press, 2002

• H. Haunstein, Presentation material (slides) of the lectures (in English)
  

Bemerkung:

Prüfungssprache Deutsch oder Englisch nach Wahl des/r Studierenden.

Studien-/Prüfungsleistungen:

Optische Kommunikationsnetze (Prüfungsnummer: 849203)

(englischer Titel: Optical Communication Networks)

Prüfungsleistung, mündliche Prüfung, Dauer (in Minuten): 30, benotet, 2.5 ECTS

Anteil an der Berechnung der Modulnote: 100.0 %

Prüfungssprache: Deutsch oder Englisch

Erstablegung: WS 2022/2023, 1. Wdh.: SS 2023

1. Prüfer:

Herbert Haunstein