GB/T 9771.3-2020Single-mode optical fibres for telecommunication—Part 3: Characteristics of an extended wavelength band dispersion unshifted single-mode optical fibre (English PDF)

Foreword

GB/T 9771 "Single Mode Optical Fiber for Communication" is divided into the following 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 part is Part 3 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 9771.3-2008 "Single-mode optical fiber for communication. Part 3: Non-dispersion-shifted single-mode optical fiber with extended wavelength band characteristic". Compared with GB/T 9771.3-2008, the main technical changes are as follows.

--- Increased the rules of contract modification (see Chapter 5);

--- Removed the subclass C of B1.3 (see 5.2.7 of the 2008 edition);

---Modified the cladding diameter requirements, added 200µm and 500µm coating diameter and tolerance requirements, and increased The coating/cladding concentricity error requirements of 200µm optical fiber (see 6.1.1, 5.1.1 of the 2008 edition);

--- Removed the classification requirements for the attenuation coefficient, added a table note to explain the situation where the attenuation coefficient requirement is not applicable, and added a footnote to give 1310nm ~ 1625nm, 1530nm ~ 1565nm maximum attenuation coefficient requirements (see 6.2.1, 2008 version 5.2.3);

--- Increased the requirement of attenuation uniformity (see 6.2.4);

--- Modified the calculation formula for the segmentation of the dispersion coefficient limit, added the zero dispersion slope, the lower limit of the 1550nm dispersion coefficient, increased 1625nm dispersion coefficient range (see 6.2.5, 2008 version 5.2.3);

--- Modified the field diameter requirements (see 6.2.6, 2008 version 5.1.1);

--- Removed the requirement for the cut-off wavelength of the jumper cable (see 5.2.1 of the 2008 edition);

--- Added hydrogen aging measurement method (see 6.2.11, 2008 version 5.2.3);

--- Modify the tension value corresponding to the screening stress (see 6.3.1, 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 technical requirements of the coating peeling force (peak value), and increased the coating peeling of the optical fiber with a coating diameter of 200µm Force Table Note (see 6.3.4, 2008 version 5.3.4);

--- Increased the requirements for environmental attenuation of 1625nm wavelength light attenuation (see 6.4.2);

--- Modified the requirement for the peak peel force after the environmental test, and added the optical fiber coating peel force table with a coating diameter of 200µm. (See 6.4.3, 5.4.3 of the 2008 edition).

1 Scope

This part of GB/T 9771 stipulates the rules and requirements for the rounding of non-dispersion-shifted single-mode optical fibers (B1.3 single-mode optical fibers) with extended wavelength bands Sum test method.

This section applies to sub-category D of B1.3 single-mode optical fibers used in communications optical cables and other information transmission equipment.

Note 1. The fiber size parameters and transmission characteristics of this section refer to the technical specifications of G.652.D fiber in ITU-T G.652 (2016), the mechanical The environmental performance refers to the regulations of category B1.3 fiber in IEC 60793-2-50:2015.

Note 2. The zero-dispersion wavelength of the B1.3 type fiber is near 1310nm, it can be used in the 1310nm and 1550nm wavelength regions, but also extended to The wavelength range from 1360nm to 1530nm is included.

Note 3. Refer to GB/T 9771.3-2008 for the technical requirements of sub-category C in B1.3 single-mode fiber.

Note 4. Refer to Appendix A for the comparison between GB/T 9771 and the ITU-T standard and IEC standard for optical fiber classification.

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 document. 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-T G.650.1 Single-mode fiber optic cable with linear and deterministic parameters definition and test methods (Definitionsand testmethodsforlinear,deterministicattributesofsingle-modefibreandcable)

ITU-T G.650.2 Single-mode fiber optic cable parameter definition and test methods with statistical and nonlinear characteristics (Definitionsand testmethodsforstatisticalandnon-linearrelatedattributesofsingle-modefibreandcable)

3 Terms and definitions

The terms and definitions defined in GB/T 15972, GB/T 33779.1, ITU-T G.650.1 and ITU-T G.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. Link PMD coefficient statistical parameter (StatisticalParameterForLinkPMD)

WDM. Wavelength Division Multiplexing