Essential optical transmission

Description

Transmission is the process of sending information
along a medium of, copper, fibre or wireless. This
course looks at transmission techniques for fibre
networks. The course aims to demystify the
technologies involved by explaining all the buzzwords
used in optical transmission.

What will you learn

Essential optical transmission course details

Anyone working in telecommunications.

None.

2 days

nsmission basics
Systems, media, signals. Signal degradation,
noise, distortion, attenuation. Digital, analogue.
Modulation, encoding.

Fibre vs copper, optical transmission, fibre
characteristics, fibre component parts. Multi Mode
Fibre (MMF). Single Mode Fibre (SMF). Fibre
connections. Lasers. Attenuations, dispersion,
optical signal noise ratios (OSNR) and their
effects. Channel Spacing and Signal Direction.
Limiting factors to single wavelength.

Timing and synchronisation of digital signals, the
plesiochronous digital hierarchy (PDH), the
synchronous digital hierarchy (SDH), service
protection with SDH. TDM. Standards, basic units,
frames, STM1 frame, bit rates, STM0, STM1,
STM4, STM16, STM64, STM256, SDH
architecture, rings, Add drop multiplexors. SDH
network topologies, structure of SDH equipment,
SDH synchronisation, protection switching in SDH
networks, SDH alarm structure, testing of SDH,
equipment and systems, Ethernet over SDH.

G.709, OTN interface structure, Optical transport
modules, ONNI, OCh, OUT, ODU, OPU. G.709
amendments.

Multiplexing, TDM, WDM benefits. WDM
standards. CWDM vs. DWDM. Four Wave Mixing
(FWM). Impact and countermeasures to FWM on
WDM.

ITU G.694.1, channel and spacing. Optical
Terminal Multiplexers (OTM). Optical Add/Drop
Multiplexers (OADM). Adding versus dropping.
Optical Amplifiers. Erbium Doped Fibre Amplifiers
(EDFA). Transponders and Combiners. Optical
and Electrical Cross Connects (OXCs/DXCs).
Cross Connect types (Transparent/Opaque).
Advantages and disadvantages of various Optical
cross connects.

Fibre installation and air blown fibre, FTTH,
FTTC, FTTN, FTTD, FFTH topologies and
wavelengths, active or passive optical network.

Gigabit passive optical network (GPON), Gigabit
Ethernet passive optical network (GEPON), Time
division PON (TDM-PON), XG-PON, Wave
Division Multiplexing PON (WDM-PON), 1Gbps,
10Gbps, 40Ggps, 100Gbps FSAN (Full Service
Access Network) NGA (Next Generation Access),
Strategies for TDM-PON to WDM-PON migration,
Architecture of NG-PON (hybrid WDM/TDM
PON), Additional services than triple play.