Optical Fiber OM2

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

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.

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

 

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