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GB/T 9771.4-2020: Single-mode optical fibres for telecommunication - Part 4: Characteristics of a dispersion shifted single-mode optical fibre
Status: Valid GB/T 9771.4: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 9771.4-2020 | English | 259 |
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Single-mode optical fibres for telecommunication - Part 4: Characteristics of a dispersion shifted single-mode optical fibre
| Valid |
GB/T 9771.4-2020
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| GB/T 9771.4-2008 | English | 319 |
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Single-mode optical fibres for telecommunication -- Part 4: Characteristics of a dispersion-shifted single-mode optical fibre
| Obsolete |
GB/T 9771.4-2008
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| GB/T 9771.4-2000 | English | 239 |
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Communication with single-mode fiber Series Part 4: dispersion shifted single-mode fiber characteristics
| Obsolete |
GB/T 9771.4-2000
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PDF similar to GB/T 9771.4-2020
Basic data | Standard ID | GB/T 9771.4-2020 (GB/T9771.4-2020) | | Description (Translated English) | Single-mode optical fibres for telecommunication - Part 4: Characteristics of a dispersion shifted single-mode optical fibre | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | M33 | | Classification of International Standard | 33.180.10 | | Word Count Estimation | 14,197 | | Date of Issue | 2020-06-02 | | Date of Implementation | 2020-12-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 9771.4-2020: Single-mode optical fibres for telecommunication - Part 4: Characteristics of a dispersion shifted single-mode optical fibre
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Single-mode optical fibres for telecommunication - Part 4.Characteristics of a dispersion shifted single-mode optical fibre
ICS 33.180.10
M33
National Standards of People's Republic of China
Replace GB/T 9771.4-2008
Single-mode optical fiber for communication. Part 4.
Dispersion-shifted single-mode fiber characteristics
2020-06-02 release
2020-12-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Contents
Foreword I
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Acronyms 1
5 Category 1
6 Rounding Rule 2
7 Requirement 2
7.1 Dimensional parameters 2
7.2 Transmission characteristics 3
7.3 Mechanical properties 5
7.4 Environmental performance 7
Appendix A (informative appendix) Correspondence between GB/T 9771 and single-mode fiber codes in IEC standards and ITU-T standards 9
Reference 10
Foreword
GB/T 9771 "Single Mode Optical Fiber for Communication" is divided into the following 7 parts.
---Part 1.Non-dispersion shifted single-mode fiber characteristics;
---Part 2.Characteristics of cut-off wavelength shifted single-mode fiber;
---Part 3.Characteristics of non-dispersion-shifted single-mode fiber with extended wavelength band;
---Part 4.Dispersion-shifted single-mode fiber characteristics;
---Part 5.Non-zero dispersion shifted single-mode fiber characteristics;
---Part 6.Characteristics of non-zero-dispersion single-mode optical fiber for wide-wavelength optical transmission;
---Part 7.Characteristics of single-mode optical fiber with insensitive bending loss for access network.
This section is Part 4 of GB/T 9771.
This section was drafted in accordance with the rules given in GB/T 1.1-2009.
This part replaces GB/T 9771.4-2008 "Single-mode optical fiber for communication Part 4.Dispersion-shifted single-mode optical fiber characteristics".
Compared with GB/T 9771.4-2008, the main technical changes are as follows.
--- Added classification and rounding rules (see Chapter 5, Chapter 6);
--- Added.200μm and 500μm coating diameters and tolerances,.200μm fiber coating concentricity error requirements (see
7.1.1);
--- Modify the optical characteristics and transmission characteristics to transmission characteristics, and adjust the mode field diameter from the size parameter to the transmission characteristics (see 7.1,
7.2, 5.1 and 5.2 of the.2008 edition);
--- Removed the attenuation coefficient requirement for the 1625nm wavelength (see 5.2.3 of the.2008 edition)
--- Increased attenuation uniformity requirements (see 7.2.4);
--- Removed the note about the cut-off wavelength of the jumper cable (λcj) and the cut-off wavelength of the fiber under special circumstances (see 5.2.1 of the.2008 edition);
--- Modify the tension value corresponding to the screening stress (see 7.3.1, 5.3.1 of the.2008 edition);
--- Removed the tensile strength requirements for gauge lengths of 1m, 10m, and 20m (see 5.3.2 of the.2008 edition);
--- Modified the peeling force requirements of the coating layer (see 7.3.4, 7.4.3,.2008 version 5.3.4, 5.4.3);
--- Increased the requirement of environmental attenuation of 1625nm wavelength light attenuation (see 7.4.2);
--- Increased the correspondence between GB/T 9771 and IEC standard and ITU-T standard single-mode fiber code (see Appendix A).
Please note that some content of this document may involve patents. The issuer of this document does not assume responsibility for identifying these patents.
This part is proposed by the Ministry of Industry and Information Technology of the People's Republic of China.
This part is under the jurisdiction of the National Communications Standardization Technical Committee (SAC/TC485).
This section was drafted. Fiberhome Technology Group Co., Ltd.
The main drafters of this section. Liu Cheng, Wang Dongxiang, Hu Guyue, Qi Wei, Qi Qingqing, Hu Peng, Wang Heng.
The previous versions of the standard replaced by this part are as follows.
---GB/T 9771.4-2000, GB/T 9771.4-2008.
Single-mode optical fiber for communication. Part 4.
Dispersion-shifted single-mode fiber characteristics
1 Scope
This part of GB/T 9771 specifies the classification, rounding rules, and performance of dispersion-shifted single-mode fiber (hereinafter referred to as B2 single-mode fiber)
Requirements and test methods.
This section applies to B2 single-mode optical fibers used in communications optical cables and other information transmission equipment.
2 Normative references
The following documents are essential for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document.
GB/T 8170 Numerical Rounding Rules and Representation and Judgment of Limit Values
GB/T 15972 (all parts) specification of optical fiber test method
GB/T 33779.1 Guidelines for testing optical fiber characteristics Part 1.Attenuation uniformity
ITU-TG.650.1 Single-mode fiber optic cable linear and deterministic characteristics of parameter definition and test method (Definitionsandtest
methodsforlinear,deterministicattributesofsingle-modefibreandcable)
ITU-TG.650.2 Parameter definition and test method of statistical and non-linear characteristics of single-mode optical fiber cable (Definitionsandtest
methodsforstatisticalandnon-linearrelatedattributesofsingle-modefibreandcable)
3 Terms and definitions
The terms and definitions defined in GB/T 15972, GB/T 33779.1, ITU-TG.650.1 and ITU-TG.650.2 apply to this document.
4 Acronyms
The following abbreviations apply to this document.
DWDM. Dense Wavelength Division Multiplexing
FTTH. Fiber to the Home (FibreToTheHome)
FWM. Four Wave Mixing (FourWaveMixing)
PMD. Polarization Mode Dispersion (PolarizationModeDispersion)
PMDQ. Statistical parameter of link PMD coefficient (Statistical parameter for link PMD)
5 Classification
The zero-dispersion wavelength of Class B2 single-mode fiber is around 1550nm, and the optimal operating wavelength is in the 1550nm region. Certain B2 single mode
The fiber design type can also support the application of coarse wavelength division multiplexing from 1460nm to 1625nm.
B2 single-mode fiber is divided into two sub-categories of B2a and B2b according to the dispersion characteristics.
Note. For the correspondence between GB/T 9771 and the single-mode fiber codes in the IEC and ITU-T standards, see Appendix A.
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