1
Scope
2 References
3 Terms and definitions
4 Abbreviations
5 Definition of spectral bands
5.1 General considerations
5.2 Allocation of spectral bands for single-mode fibre systems
5.3 Bands for multimode fibre systems
6 Parameters of system elements
6.1 Line coding
6.2 Transmitters
6.3 Optical amplifiers
6.4 Optical path
6.5 Receivers
7 Line coding considerations
7.1 Return-to-zero (RZ) implementation
7.2 System impairment considerations
8 Optical network topology
8.1 Topological structures
9 "Worst-case" system design
9.1 Power budget concatenation
9.2 Chromatic
dispersion
9.3 Polarization-mode dispersion
9.4 BER and Q factor
9.5 Noise concatenation
9.6 Optical crosstalk
9.7 Concatenation of non-linear effects – Computational approach
10 Statistical
system design
10.1 Generic methodology
10.2 Statistical design of loss
10.3 Statistical design of chromatic dispersion
10.4 Statistical design of polarization-mode dispersion
11 Forward Error
Correction (FEC)
11.1 In-band FEC in SDH systems
11.2 Out-of-band FEC in optical transport networks (OTNs)
11.3 Coding gain and net coding gain (NCG)
11.4 Theoretical NCG bounds for some non-standard out-of-band FECs
11.5 Statistical assumption for coding gain and NCG
11.6 Candidates for parameter relaxation
11.7 Candidates for improvement of system characteristics
12 Physical layer transverse and longitudinal compatibility
12.1 Physical layer transverse compatibility
12.2 Physical layer longitudinal compatibility
12.3 Joint engineering
13 Switched optical
network design considerations
14 Best practices
for optical power safety
14.1 Viewing
14.2 Fibre ends
14.3 Ribbon fibres
14.4 Test cords
14.5 Fibre bends
14.6 Board extenders
14.7 Maintenance
14.8 Test equipment
14.9 Modification
14.10 Key control
14.11 Labels
14.12 Signs
14.13 Alarms
Appendix I – Pulse broadening due to chromatic
dispersion
I.1 Purpose
I.2 General published result
I.3 Change of notation
I.4 Simplification for a
particular case
I.5 Pulse broadening
related to bit rate
I.6 Value of the shape
factor
I.7
General result and practical units