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YD/T 2147-2010: Test methods of Nx40Gbit/s optical wavelength division multiplexing (WDM) systems
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GB COMMUNICATION INDUSTRY STANDARD ICS 33.040.20 M 33 Test methods of Nx40Gbit/s optical wavelength division multiplexing (WDM) systems Issued on. DECEMBER 29, 2010 Implemented on. JANUARY 01, 2011 Issued by. Ministry of Industry and Information Technology of the People's Republic of China
Table of Contents
Foreword... 4 1 Scope... 5 2 Normative references... 5 3 Symbols and abbreviations... 6 4 System configuration and reference point definition... 9 5 Main optical path test... 11 6 Optical wavelength converter test... 25 7 Optical wavelength division multiplexer / demultiplexer test... 55 8 Optical amplifier test... 55 9 Dispersion compensator test... 55 10 FEC test... 56 11 Dynamic power control and gain equalization test... 57 12 OADM test... 58 13 Supervisory channel test... 58 14 Transmission function and performance test... 58 15 Network management system function verification... 67 16 APR function verification... 70 Appendix A (Informative) Deviation calibration of OSNR test by light source turning off method... 71 Appendix B (Informative) Polarization extinction band internal OSNR measurement method... 751 Scope
This standard specifies the test methods of the open N×40Gbit/s optical wavelength division multiplexing (WDM) system, including. system configuration and reference point definition, main optical channel test, optical wavelength converter test, optical wavelength division multiplexer/demultiplexer test, optical amplifier test, dispersion compensator test, FEC test, dynamic power control and gain equalization test, OADM test, monitoring channel test, transmission function and performance test, network management system function verification, APR function verification and so on. This standard is applicable to the open Nx40Gbit/s optical wavelength division multiplexing (WDM) system. The integrated Nx40Gbit/s optical wavelength division multiplexing (WDM) systems and Nx10Gbit/s optical wavelength division multiplexing (WDM) systems using non-NRZ code patterns may also make reference with this standard.2 Normative references
The provisions in following documents become the provisions of this Standard through reference in this Standard. For the dated references, the subsequent amendments (excluding corrections) or revisions do not apply to this Standard; however, parties who reach an agreement based on this Standard are encouraged to study if the latest versions of these documents are applicable. For undated references, the latest edition of the referenced document applies. GB/T 20440-2006 Technical requirements of dense wavelength division multiplexer/demultiplexer YD/T 1159-2001 Test methods of optical wavelength division multiplexing (WDM) system YD/T 1259-2003 Technical specification for optical safe procedure for wavelength division multiplexing (WDM) system YD/T 1339-2005 Test methods of metropolitan optical transport network WDM ring YD/T 1383-2005 Technical requirements for WDM element management system3 Symbols and abbreviations
The following symbols and abbreviations apply to this standard. AIS. Alarm Indication Signal APR. Automatic Power Reduction ASE. Amplified Spontaneous Emission BBE. Background Block Error4 System configuration and reference point definition
The reference configuration of the Nx40Gbit/s WDM system is as shown in Figure 1, wherein the OTU is the optical wavelength converter to achieve 3R function, that is, re-amplification, re-shaping and re-timing; the OMU is the optical multiplexer unit to achieve multiple wavelength multiplexing function;5 Main optical path test
5.1 MPI-SM/SM point interface parameter test 5.1.1 MPI-SM/SM output power per path 5.1.1.4 Precautions It shall pay attention to the following matters during the test. 5.1.2 MPl-SM Maximum path power difference 5.1.2.1 Definitions It refers to the difference between the maximum value and the minimum value of the average transmitted optical power of all paths at the reference point MPI-SM at a given light resolution at the same time. 5.1.2.2 Test configuration The test configuration is as shown in Figure 2.Test instrument is the spectrum analyzer. 5.1.3.3 Test procedure FOLLOW the procedures below to conduct test. a) CONNECT the test configuration as shown in Figure 3; SET the operating range of the power meter at 1550nm window; b) After the reading of the optical power meter is stable, READ out and RECORD the power value. 5.1.3.4 Precautions It shall pay attention to the following matters during the test. 5.1.4 MPI-SM/SM optical signal to noise ratio 5.1.4.1 Definitions It refers to the ratio between the signal optical power and the ASE noise power in each path at the reference point MPI-SM/SM, wherein the ASE noise power reference bandwidth is generally selected as 0.1nm. 5.1.4.2 Test Configuration The test configuration is as shown in Figure 3.Test instrument is the spectrum analyzer. 5.2 Parameter test between MPl-SM ~ MPI-RM 5.2.1 MPl-SM ~ MPI-RM residual dispersion 5.2.1.1 Definitions It refers to the chromatic dispersion value between the reference point MPl-SM and MPl-RM. 5.2.1.2 Test configuration The test configuration is as shown in Figure 4.The test instrument is a modulated broad spectrum light source and a CD analyzer.6 Optical wavelength converter test
6.1 Transmitting and receiving integrated OTU optical parameters test 6.1.1 Transmitting end interface parameter test 6.1.1.1 Receiver sensitivity 6.1.1.1.4 FOLLOW the procedures below to conduct test. 6.1.1.1.5 Precautions 6.1.1.1.6 It shall pay attention to the following matters during the test. 6.1.1.2.5 Precautions In addition to the matters noted in Clause 6.1.1.1.4, there are the following precautions. 6.1.1.3 Reflection coefficient 6.1.1.3.1 Definitions It refers to the ratio of the reflective optical power to the incident optical power at the reference point S.7 Optical wavelength division multiplexer / demultiplexer test OMU and ODU tests are as shown in Chapter 8 of the YD/T 1159-2001 and
Chapter 5 of the GB/T 20440-2006; AND the comb filter tests shall follow OMU/ODU.8 Optical amplifier test
SEE Chapter 9 of YD/T 1159-2001,9 Dispersion compensator test
9.1 CD compensator 9.1.1 Fixed dispersion compensator The chromate dispersion value test is performed as described in clause 5.2.1, 9.1.2 Adaptive dispersion compensator The compensation range test is as shown in clause 6.1.1.7 (CONNECT the adaptive dispersion compensator after Rn Point). 9.2 PMD compensator The PMDC compensation range is as shown in clause 6.1.1.8 (CONNECT in the PMD compensator after Rn Point). YD/T 2147-2010 GB COMMUNICATION INDUSTRY STANDARD ICS 33.040.20 M 33 Test methods of Nx40Gbit/s optical wavelength division multiplexing (WDM) systems Issued on. DECEMBER 29, 2010 Implemented on. JANUARY 01, 2011 Issued by. Ministry of Industry and Information Technology of the People's Republic of ChinaTable of Contents
Foreword... 4 1 Scope... 5 2 Normative references... 5 3 Symbols and abbreviations... 6 4 System configuration and reference point definition... 9 5 Main optical path test... 11 6 Optical wavelength converter test... 25 7 Optical wavelength division multiplexer / demultiplexer test... 55 8 Optical amplifier test... 55 9 Dispersion compensator test... 55 10 FEC test... 56 11 Dynamic power control and gain equalization test... 57 12 OADM test... 58 13 Supervisory channel test... 58 14 Transmission function and performance test... 58 15 Network management system function verification... 67 16 APR function verification... 70 Appendix A (Informative) Deviation calibration of OSNR test by light source turning off method... 71 Appendix B (Informative) Polarization extinction band internal OSNR measurement method... 751 Scope
This standard specifies the test methods of the open N×40Gbit/s optical wavelength division multiplexing (WDM) system, including. system configuration and reference point definition, main optical channel test, optical wavelength converter test, optical wavelength division multiplexer/demultiplexer test, optical amplifier test, dispersion compensator test, FEC test, dynamic power control and gain equalization test, OADM test, monitoring channel test, transmission function and performance test, network management system function verification, APR function verification and so on. This standard is applicable to the open Nx40Gbit/s optical wavelength division multiplexing (WDM) system. The integrated Nx40Gbit/s optical wavelength division multiplexing (WDM) systems and Nx10Gbit/s optical wavelength division multiplexing (WDM) systems using non-NRZ code patterns may also make reference with this standard.2 Normative references
The provisions in following documents become the provisions of this Standard through reference in this Standard. For the dated references, the subsequent amendments (excluding corrections) or revisions do not apply to this Standard; however, parties who reach an agreement based on this Standard are encouraged to study if the latest versions of these documents are applicable. For undated references, the latest edition of the referenced document applies. GB/T 20440-2006 Technical requirements of dense wavelength division multiplexer/demultiplexer YD/T 1159-2001 Test methods of optical wavelength division multiplexing (WDM) system YD/T 1259-2003 Technical specification for optical safe procedure for wavelength division multiplexing (WDM) system YD/T 1339-2005 Test methods of metropolitan optical transport network WDM ring YD/T 1383-2005 Technical requirements for WDM element management system3 Symbols and abbreviations
The following symbols and abbreviations apply to this standard. AIS. Alarm Indication Signal APR. Automatic Power Reduction ASE. Amplified Spontaneous Emission BBE. Background Block Error4 System configuration and reference point definition
The reference configuration of the Nx40Gbit/s WDM system is as shown in Figure 1, wherein the OTU is the optical wavelength converter to achieve 3R function, that is, re-amplification, re-shaping and re-timing; the OMU is the optical multiplexer unit to achieve multiple wavelength multiplexing function;5 Main optical path test
5.1 MPI-SM/SM point interface parameter test 5.1.1 MPI-SM/SM output power per path 5.1.1.4 Precautions It shall pay attention to the following matters during the test. 5.1.2 MPl-SM Maximum path power difference 5.1.2.1 Definitions It refers to the difference between the maximum value and the minimum value of the average transmitted optical power of all paths at the reference point MPI-SM at a given light resolution at the same time. 5.1.2.2 Test configuration The test configuration is as shown in Figure 2.Test instrument is the spectrum analyzer. 5.1.3.3 Test procedure FOLLOW the procedures below to conduct test. a) CONNECT the test configuration as shown in Figure 3; SET the operating range of the power meter at 1550nm window; b) After the reading of the optical power meter is stable, READ out and RECORD the power value. 5.1.3.4 Precautions It shall pay attention to the following matters during the test. 5.1.4 MPI-SM/SM optical signal to noise ratio 5.1.4.1 Definitions It refers to the ratio between the signal optical power and the ASE noise power in each path at the reference point MPI-SM/SM, wherein the ASE noise power reference bandwidth is generally selected as 0.1nm. 5.1.4.2 Test Configuration The test configuration is as shown in Figure 3.Test instrument is the spectrum analyzer. 5.2 Parameter test between MPl-SM ~ MPI-RM 5.2.1 MPl-SM ~ MPI-RM residual dispersion 5.2.1.1 Definitions It refers to the chromatic dispersion value between the reference point MPl-SM and MPl-RM. 5.2.1.2 Test configuration The test configuration is as shown in Figure 4.The test instrument is a modulated broad spectrum light source and a CD analyzer.6 Optical wavelength converter test
6.1 Transmitting and receiving integrated OTU optical parameters test 6.1.1 Transmitting end interface parameter test 6.1.1.1 Receiver sensitivity 6.1.1.1.4 FOLLOW the procedures below to conduct test. 6.1.1.1.5 Precautions 6.1.1.1.6 It shall pay attention to the following matters during the test. 6.1.1.2.5 Precautions In addition to the matters noted in Clause 6.1.1.1.4, there are the following precautions. 6.1.1.3 Reflection coefficient 6.1.1.3.1 Definitions It refers to the ratio of the reflective optical power to the incident optical power at the reference point S.7 Optical wavelength division multiplexer / demultiplexer test OMU and ODU tests are as shown in Chapter 8 of the YD/T 1159-2001 and
Chapter 5 of the GB/T 20440-2006; AND the comb filter tests shall follow OMU/ODU.8 Optical amplifier test
SEE Chapter 9 of YD/T 1159-2001,9 Dispersion compensator test
9.1 CD compensator 9.1.1 Fixed dispersion compensator The chromate dispersion value test is performed as described in clause 5.2.1, 9.1.2 Adaptive dispersion compensator The compensation range test is as shown in clause 6.1.1.7 (CONNECT the adaptive dispersion compensator after Rn Point). 9.2 PMD compensator The PMDC compensation range is as shown in clause 6.1.1.8 (CONNECT in the PMD compensator after Rn Point). ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
