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Optical Fiber OM2

MultiCom ® bending insensitive 50/125 multimode optical fiber is a graded index multimode fiber. This optical fiber comprehensively optimizes the characteristics of 850 nm and 1300 nm operating windows, providing higher bandwidth, lower attenuation, and outstanding bending insensitive performance, which meet the use requirements in 850 nm and 1300 nm window. The bending insensitive multimode optical fibers meet the ISO/IEC 11801 OM2 technical specifications and A1a.1 type of optical fibers in IEC 60793-2-10.

    Reference

    ITU-T G.651.1 Characteristics of a 50/125 μm multimode graded index optical fibre cable for the optical access network
    IEC 60794- 1- 1 Optical fiber cables-part 1- 1: Generic specification- General
    IEC60794- 1-2 IEC 60793-2- 10 Optical fibres – Part 2- 10: Product specifications – Sectional specification for category A1 multimode fibres
    IEC 60793- 1-20 Optical fibers - part 1-20: Measurement methods and test procedures – Fibre geometry
    IEC 60793- 1-21 Optical fibres – Part 1-21: Measurement methods and test procedures – Coating geometry
    IEC 60793- 1-22 Optical fibres – Part 1-22: Measurement methods and test procedures – Length measurement
    IEC 60793- 1-30 Optical fibres - Part 1-30: Measurement methods and test procedures - Fibre proof test
    IEC 60793- 1-31 Optical fibres - Part 1-31: Measurement methods and test procedures - Tensile strength
    IEC 60793- 1-32 Optical fibres - Part 1-32: Measurement methods and test procedures - Coating strippability
    IEC 60793- 1-33 Optical fibres – Part 1-33: Measurement methods and test procedures – Stresse corrosion susceptibility
    IEC 60793- 1-34 Optical fibres - Part 1-34: Measurement methods and test procedures - Fibre curl
    IEC 60793- 1-40 Optical fibres - Part 1-40: Measurement methods and test procedures - Attenuation
    IEC 60793- 1-41 Optical fibres - Part 1-41: Measurement methods and test procedures - Bandwidth
    IEC 60793- 1-42 Optical fibres - Part 1-42: Measurement methods and test procedures - Chromatic dispersion
    IEC 60793- 1-43 Optical fibres - Part 1-43: Measurement methods and test procedures - Numerical aperture
    IEC 60793- 1-46 Optical fibres - Part 1-46: Measurement methods and test procedures - Monitoring of changes in optical transmittance
    IEC 60793- 1-47 Optical fibres - Part 1-47: Measurement methods and test procedures - Macrobending loss
    IEC 60793- 1-49 Optical fibres - Part 1-49: Measurement methods and test procedures - Differential mode delay
    IEC 60793- 1-50 Optical fibres - Part 1-50: Measurement methods and test procedures - Damp heat (steady state)
    IEC 60793- 1-51 Optical fibres - Part 1-51: Measurement methods and test procedures - Dry heat
    IEC 60793- 1-52 Optical fibres - Part 1-52: Measurement methods and test procedures -Change of temperature
    IEC 60793- 1-53 Optical fibres - Part 1-53: Measurement methods and test procedures - Water immersion

    Product Introduction

    MultiCom ® bending insensitive 50/125 multimode optical fiber is a graded index multimode fiber. This optical fiber comprehensively optimizes the characteristics of 850 nm and 1300 nm operating windows, providing higher bandwidth, lower attenuation, and outstanding bending insensitive performance, which meet the use requirements in 850 nm and 1300 nm window. The bending insensitive multimode optical fibers meet the ISO/IEC 11801 OM2 technical specifications and A1a.1 type of optical fibers in IEC 60793-2-10.

    Performance Features

    Precise refractive index distribution
    Outstanding bending resistance
    Low attenuation and high bandwidth

    Product Specification

    Parameter Conditions Units Value
    Optical (A/B+/B Grade)
    Attenuation 850 nm dB/km ≤2.4/≤2.5/≤2.5
    1300 nm dB/km ≤0.6/≤0.7/≤0.7
    Bandwidth (Overfilled Launch) 850 nm MHz.km ≥500/≥400/≥200
    1300 nm MHz.km ≥500/≥400/≥200
    Numerical Aperture     0.200±0.015
    Zero Dispersion Wavelength   nm 1295- 1340
    Effective Group Refractive Index 850 nm   1.482
    1300 nm   1.477
    Attenuation Nonuniformity   dB/km ≤0.10
    Partial Discontinuity   dB ≤0.10
    Geometrical
    Core Diameter   μm 50.0±2.5
    Core Non-Circularity   % ≤6.0
    Cladding Diameter   μm 125±1.0
    Cladding Non-Circularity   % ≤1.0
    Core/Cladding Concentricity Error   μm ≤1.0
    Coating Diameter (Uncolored)   μm 245±7
    Coating/Cladding Concentricity Error   μm ≤10.0
    Environmental (850nm, 1300nm)
    Temperature Cycling -60℃ to 85℃ dB/km ≤0.10
    Temperature Humidity Cycling - 10℃ to +85℃ up to 98% RH   dB/km   ≤0.10
    High Temperature & High Humidity 85℃ at 85% RH dB/km ≤0.10
    Water Immersion 23℃ dB/km ≤0.10
    High Temperature Aging 85℃ dB/km ≤0.10
    Mechanical
    Proof Stress   % 1.0
      kpsi 100
    Coating Strip Force Peak N 1.3-8.9
    Average N 1.5
    Dynamic Fatigue (Nd) Typical Values   ≥20
    Macrobending Loss
    R15 mm×2 t 850 nm 1300 nm dB dB ≤0.1 ≤0.3
    R7.5 mm×2 t 850 nm 1300 nm dB dB ≤0.2 ≤0.5
    Delivery Length
    Standard Reel Length   km 1.1- 17.6
     

    Optical fiber test

    During manufacturing period, all the optical fibers shall be tested in accordance with the following test method.
    Item Test method
    Optical characteristics
    Attenuation IEC 60793- 1-40
    Chromatic dispersion IEC60793- 1-42
    Change of optical transmission IEC60793- 1-46
    Differential mode delay IEC60793- 1-49
    Bending loss IEC 60793- 1-47
    Modal bandwidth IEC60793- 1-41
    Numerical aperture IEC60793- 1-43
    Geometrical characteristics
    Core diameter IEC 60793- 1-20
    Cladding diameter
    Coating diameter
    Cladding non-circularity
    Core/cladding concentricity error
    Cladding/coating concentricity error  
    Mechanical characteristics
    Proof test IEC 60793- 1-30
    Fiber curl IEC 60793- 1-34
    Coating strip force IEC 60793- 1-32
    Environmental characteristics
    Temperature induced attenuation IEC 60793- 1-52
    Dry heat induced attenuation IEC 60793- 1-51
    Water immersion induced attenuation IEC 60793- 1-53
    Damp heat induced attenuation  
     

    Packing

    4.1 Optical fiber products shall be disk-mounted. Each disc can only be one manufacturing length.
    4.2 Cylinder diameter should not be less than 16cm. Coiled optical fibers should be neatly arranged, not loose. Both ends of the optical fiber shall be fixed and its inner end shall be  fixed. It can store more than 2m optical fiber for inspection.
    4.3 The optical fiber product plate shall be marked as follows:
    A) Name and address of the manufacturer;
    B) Product name and standard number;
    C) Fiber model and factory number;
    D) Optical fiber attenuation;
    E) Length of optical fiber, m.
    4.4 Optical fiber products shall be packaged for protection, and then put into the packaging box, on which shall be marked:
    A) Name and address of the manufacturer;
    B) Product name and standard number;
    C) Factory batch number of optical fiber;
    D) Gross weight and package dimensions;
    E) Year and month of manufacture;
    F) Packing, storage and transportation drawings for wetness and moisture resistance, upward and fragile.

    Delivery

    Transport and storage of optical fiber should pay attention to:
    A) Store in a warehouse with room temperature and relative humidity less than 60% away from light;
    B) Optical fiber discs shall not be laid or stacked;
    C) Awning should be covered during transportation to prevent rain, snow and sun exposure. Handling should be careful to prevent vibration.