1、 I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n U n i o n ITU-T G.663 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Amendment 1 (09/2016) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Transmission media and optical systems characteristics Characteristics of op
2、tical components and subsystems Application-related aspects of optical amplifier devices and subsystems Amendment 1 Recommendation ITU-T G.663 (2011) Amendment 1 ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUI
3、TS G.100G.199 GENERAL CHARACTERISTICS COMMON TO ALL ANALOGUE CARRIER-TRANSMISSION SYSTEMS G.200G.299 INDIVIDUAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON METALLIC LINES G.300G.399 GENERAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON RADIO-RELAY OR SATELLITE LINKS
4、 AND INTERCONNECTION WITH METALLIC LINES G.400G.449 COORDINATION OF RADIOTELEPHONY AND LINE TELEPHONY G.450G.499 TRANSMISSION MEDIA AND OPTICAL SYSTEMS CHARACTERISTICS G.600G.699 General G.600G.609 Symmetric cable pairs G.610G.619 Land coaxial cable pairs G.620G.629 Submarine cables G.630G.639 Free
5、space optical systems G.640G.649 Optical fibre cables G.650G.659 Characteristics of optical components and subsystems G.660G.679 Characteristics of optical systems G.680G.699 DIGITAL TERMINAL EQUIPMENTS G.700G.799 DIGITAL NETWORKS G.800G.899 DIGITAL SECTIONS AND DIGITAL LINE SYSTEM G.900G.999 MULTIM
6、EDIA QUALITY OF SERVICE AND PERFORMANCE GENERIC AND USER-RELATED ASPECTS G.1000G.1999 TRANSMISSION MEDIA CHARACTERISTICS G.6000G.6999 DATA OVER TRANSPORT GENERIC ASPECTS G.7000G.7999 PACKET OVER TRANSPORT ASPECTS G.8000G.8999 ACCESS NETWORKS G.9000G.9999 For further details, please refer to the list
7、 of ITU-T Recommendations. Rec. ITU-T G.663 (2011)/Amd.1 (09/2016) i Recommendation ITU-T G.663 Application-related aspects of optical amplifier devices and subsystems Amendment 1 Summary Recommendation ITU-T G.663 covers application-related aspects of optical amplifier (OA) devices and subsystems,
8、primarily those used in digital systems. Applications include both single-channel and multi-channel systems used in point-to-point and point-to-multipoint configurations for use in long-distance networks and optical access networks. The purpose of this Recommendation is to identify which aspects sho
9、uld be considered for each application and to specify appropriate parameter values and ranges for each type of OA device. In this version of this Recommendation, information about non-linear optical effects in Appendix II is updated. Amendment 1 adds a new clause II.3.4 to Appendix II for cross-pola
10、rization modulation and updates the list of abbreviations in clause 4. History Edition Recommendation Approval Study Group Unique ID* 1.0 ITU-T G.663 1996-10-18 15 11.1002/1000/3937 2.0 ITU-T G.663 2000-04-04 15 11.1002/1000/5057 2.1 ITU-T G.663 (2000) Amd. 1 2003-01-31 15 11.1002/1000/6252 3.0 ITU-
11、T G.663 2011-04-13 15 11.1002/1000/11114 3.1 ITU-T G.663 (2011) Amd. 1 2016-09-30 15 11.1002/1000/13122 _ * To access the Recommendation, type the URL http:/handle.itu.int/ in the address field of your web browser, followed by the Recommendations unique ID. For example, http:/handle.itu.int/11.1002/
12、1000/11830-en. ii Rec. ITU-T G.663 (2011)/Amd.1 (09/2016) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T)
13、is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years
14、, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necess
15、ary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However,
16、 the Recommendation may contain certain mandatory provisions (to ensure, e.g., interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equ
17、ivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTSITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a c
18、laimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU ha
19、d received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/IT
20、U-T/ipr/. ITU 2017 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T G.663 (2011)/Amd.1 (09/2016) iii Table of Contents Page 1 Scope . 1 2 References . 1 3 Definitions 2 4 Abbreviations and acronyms 2
21、5 Applications 4 5.1 Booster (power) amplifier 4 5.2 Pre-amplifier . 5 5.3 Line amplifier . 5 5.4 Optically amplified transmitter . 6 5.5 Optically amplified receiver . 6 5.6 Single-channel applications 6 5.7 Multi-channel applications . 6 5.8 Point-to-point applications . 6 5.9 Point-to-multipoint
22、applications . 6 6 Operation, administration and maintenance aspects . 7 7 Parameter values and ranges for OFA devices . 7 7.1 Booster (power) amplifier 7 7.2 Pre-amplifier . 7 7.3 Line amplifier . 8 8 Parameter values and ranges for OFA-related aspects of OFA subsystems . 8 8.1 Optically amplified
23、transmitter . 8 8.2 Optically amplified receiver . 8 9 Environmental conditions . 8 10 Optical safety aspects . 8 Appendix I Parameter values and ranges for OFA devices in single-channel point-to-point systems 9 I.1 Booster (power) amplifier 9 I.2 Pre-amplifier . 9 Appendix II Transmission-related a
24、spects 11 II.1 Purpose . 11 II.2 Factors influencing OA transmission applications . 11 II.3 Fibre optical non-linearities 12 II.4 Polarization properties 25 II.5 Fibre dispersion properties . 30 II.6 Other OA-related properties . 31 Appendix III Pre-amplifier parameters . 37 iv Rec. ITU-T G.663 (201
25、1)/Amd.1 (09/2016) Page Appendix IV OAM aspects of OAs 40 IV.1 OA subsystems . 40 IV.2 OA devices . 40 Bibliography. 41 Rec. ITU-T G.663 (2011)/Amd.1 (09/2016) 1 Recommendation ITU-T G.663 Application-related aspects of optical amplifier devices and subsystems Editorial note: This is a complete-text
26、 publication. Modifications introduced by this amendment are shown in revision marks relative to Recommendation ITU-T G.663 (2011). 1 Scope This Recommendation covers application-related aspects of optical amplifier (OA) devices and subsystems, primarily those used in digital systems. Optical amplif
27、iers operating in the 1550 nm region, or 1310 nm region, or other wavelength regions are included. Generic characteristics of OA devices and subsystems are described in ITU-T G.662. Applications include both single-channel and multi-channel systems used in point-to-point and point-to-multipoint conf
28、igurations for use in long-distance networks and optical access networks. The purpose of this Recommendation is to identify which aspects should be considered for each application and to specify common parameter values and ranges for each type of OA device (booster amplifier, pre-amplifier, and line
29、 amplifier). This Recommendation pertains to the development of new equipment including OA devices and includes guidelines to apply OA devices and OA subsystems to existing equipment. As an objective, for systems specified as transversely compatible, the degree of compatibility should not be changed
30、 by the use of OA devices. Important topics contained in this Recommendation include transmission aspects, maintenance aspects, and optical safety. 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of
31、 this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and o
32、ther references listed below. A list of the currently valid ITU-T Recommendations is regularly published. The reference to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T G.652 Recommendation ITU-T G.652 (2009), Characteristics
33、 of a single-mode optical fibre and cable. ITU-T G.653 Recommendation ITU-T G.653 (2010), Characteristics of a dispersion-shifted, single-mode optical fibre and cable. ITU-T G.654 Recommendation ITU-T G.654 (2010), Characteristics of a cut-off shifted, single-mode optical fibre and cable. ITU-T G.65
34、5 Recommendation ITU-T G.655 (2009), Characteristics of a non-zero dispersion-shifted single-mode optical fibre and cable. ITU-T G.661 Recommendation ITU-T G.661 (2007), Definition and test methods for the relevant generic parameters of optical amplifier devices and subsystems. ITU-T G.662 Recommend
35、ation ITU-T G.662 (2005), Generic characteristics of optical amplifier devices and subsystems. ITU-T G.664 Recommendation ITU-T G.664 (2006), Optical safety procedures and requirements for optical transport systems. 2 Rec. ITU-T G.663 (2011)/Amd.1 (09/2016) ITU-T G.671 Recommendation ITU-T G.671 (20
36、09), Transmission characteristics of optical components and subsystems. ITU-T G.691 Recommendation ITU-T G.691 (2006), Optical interfaces for single channel STM-64 and other SDH systems with optical amplifiers. ITU-T G.692 Recommendation ITU-T G.692 (1998), Optical interfaces for multichannel system
37、s with optical amplifiers. ITU-T G.783 Recommendation ITU-T G.783 (2006), Characteristics of synchronous digital hierarchy (SDH) equipment functional blocks. ITU-T G.955 Recommendation ITU-T G.955 (1996), Digital line systems based on the 1544 kbit/s and the 2048 kbit/s hierarchy on optical fibre ca
38、bles. ITU-T G.957 Recommendation ITU-T G.957 (2006), Optical interfaces for equipments and systems relating to the synchronous digital hierarchy. IEC 60721-3-0 IEC 60721-3-0 (1997), Classification of environmental conditions Part 3: Classification of groups of environmental parameters and their seve
39、rities. Introduction. IEC 60721-3-1 IEC 60721-3-1 (1997), Classification of environmental conditions Part 3 Classification of groups of environmental parameters and their severities Section 1: Storage. IEC 60721-3-2 IEC 60721-3-2 (1997), Classification of environmental conditions Part 3: Classificat
40、ion of groups of environmental parameters and their severities Section 2: Transportation. IEC 60721-3-3 IEC 60721-3-3 (1994), Classification of environmental conditions Part 3: Classification of groups of environmental parameters and their severities Section 3: Stationary use at weatherprotected loc
41、ations. IEC 60721-3-4 IEC 60721-3-4 (1995), Classification of environmental conditions Part 3: Classification of groups of environmental parameters and their severities Section 4: Stationary use at non-weatherprotected locations. IEC 60825-1 IEC 60825-1 (2007), Safety of laser products Part 1: Equip
42、ment classification and requirements. IEC 60825-2 IEC 60825-2 (2010), Safety of laser products Part 2: Safety of optical fibre communication systems (OFCS). IEC/TR 61282-3 IEC/TR 61282-3 (2006), Fibre optic communication system design guides Part 3: Calculation of link polarization mode dispersion.
43、3 Definitions For the purpose of this Recommendation, the definitions given in ITU-T G.661 and ITU-T G.662 apply. 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: AM Amplitude Modulation APR Automatic Power Reduction ASE Amplified Spontaneous Emission R
44、ec. ITU-T G.663 (2011)/Amd.1 (09/2016) 3 ASK Amplitude Shift Keying BA Booster (power) Amplifier BER Bit Error Ratio CD Chromatic Dispersion CMC Coherent Multichannel CW Continuous Wave DA Dispersion Accommodation DP Dual Polarization DPSK Differential Phase Shift Keying DQPSK Differential Quadratur
45、e Phase Shift Keying EDFA Erbium-Doped Fibre Amplifier FDM Frequency-Division Multiplexing FWHM Full Width at Half Maximum FWM Four-Wave Mixing IFWM Intra-channel Four-Wave Mixing IXPM Intra-channel Cross-Phase Modulation LA Line Amplifier LOS Loss of Signal MI Modulation Instability NPN Non-linear
46、Phase Noise NRZ Non-Return to Zero OA Optical Amplifier OAM Operation, Administration and Maintenance OAN Optically Amplified Network OAR Optically Amplified Receiver OAT Optically Amplified Transmitter OFA Optical Fibre Amplifier OFDM Optical Frequency Domain Multiplexing PA Pre-Amplifier PDH Plesi
47、ochronous Digital Hierarchy PDL Polarization Dependent Loss PHB Polarization Hole Burning PM Phase Modulation PMD Polarization Mode Dispersion PSK Phase Shift Keying QPSK Quadrature Phase Shift Keying RZ Return to Zero 4 Rec. ITU-T G.663 (2011)/Amd.1 (09/2016) SBS Stimulated Brillouin Scattering SDH
48、 Synchronous Digital Hierarchy SMF Single-Mode Fibre SNR Signal-to-Noise Ratio SOA Semiconductor Optical Amplifier SOP State of Polarization SP Single Polarization SPM Self-Phase Modulation SRS Stimulated Raman Scattering TRE Terminal Receiver Equipment WDM Wavelength Division Multiplexing XPM Cross
49、-Phase Modulation XPolM Cross-Polarization Modulation 5 Applications Application of OAs in optical transmission systems offers a number of advantages. Chief among these advantages is the ability to realize very significant unrepeated system lengths as well as very long unregenerated system lengths. Deployment of OAs is likely to permit the retirement of many existing conventional regenerator sites and, in the case of new routes, to render unnecess
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