高頻寬 50/125 多模光纖（50/125/250μm PrimeLaser™ 300 fiber）
in
♦ This specification conforms to the requirement of IEC 60793 A1a, IEC 11801OM3
and ITU-T G.651.
♦ OM3-type 850 nm Laser-Optimized 50 µm Multimode Fiber for 10 Gb/s
♦ OM3-type 850 nm Laser-Optimized 50 µm Multimode Fiber for 10 Gb/s
Application over 300 m
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OPTICAL CHARACTERISTICS
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Characteristics
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Conditions
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Specified Values
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Unit
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Attenuation Coefficient
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850 nm
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≦ 2.5
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〔dB/km〕
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1300 nm
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≦ 0.7
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〔dB/km〕
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Numerical Aperture
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0.200 ± 0.015
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Overfilled Modal Bandwidth
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850 nm
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≧ 1500
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〔MHz·km〕
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1300 nm
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≧ 500
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〔MHz·km〕
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Differential Mode Delay
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850 nm
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Any one of the following masks:
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Note:
A minimum effective system modal bandwidth- length product of 2000 MHz·km is achieved
when combining this 50µm fiber with
transmitters meeting the following transmitter
power distribution (per FOTP-203):
Encircled Flux at radius 4.5µm:≦30% and
Encircled Flux at radius 19µm:≧86%
(Ref.:TIA/EIA-492AAAC,ISO/IEC 11801)
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DMD Mask
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DMD Inner Range
(Radius 5 to 18 µm)
〔ps/m〕
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DMD Total Range
(Radius 0 to 23 µm)
〔ps/m〕
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1
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≦ 0.23
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≦ 0.70
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2
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≦ 0.24
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≦ 0.60
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3
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≦ 0.25
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≦ 0.50
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4
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≦ 0.26
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≦ 0.40
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5
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≦ 0.27
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≦ 0.35
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6
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≦ 0.33
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≦ 0.33
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BACKSCATTER CHARACTERISTICS
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Attenuation Directional Uniformity
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≦ 0.05
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〔dB/km〕
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Attenuation Uniformity
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≦ 0.05
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〔dB〕
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Group Index of Refraction
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850 nm
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1.481
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1300 nm
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1.476
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PHYSICAL CHARACTERISTICS
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| Core Diameter | 50.0 ± 2.5 | 〔µm〕 | |
| Core Non- circularity | ≦ 5 | 〔%〕 | |
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Core / Cladding Concentricity Error
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≦ 1.5
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〔µm〕
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Cladding Diameter
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125 ± 1
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〔µm〕
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Cladding Non-Circularity
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≦ 1.0
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〔%〕
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Coating Diameter
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245 ± 10
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〔µm〕
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Coating Non-Circularity
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≦ 6
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〔%〕
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Clad/Coat Concentricity Error
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≦ 5
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〔µm〕
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Fiber curl
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≧ 4
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〔m〕
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Proof Test
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100
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〔kpsi〕
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Bend Induced Attenuation at 1300 nm
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≦ 0.5
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〔dB〕
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(100 turns around a mandrel of 75 mm diameter)
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Coating Strip Force (Typical)
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130
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〔g〕
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Length (Typical)
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4.4～8.8
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〔km〕
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ENVIRONMENTAL CHARACTERISTICS
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Temperature Dependence at 850 nm and 1300 nm
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≦ 0.1
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〔dB/km〕
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Induced Attenuation – 60°C to +85°C
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Temperature And Humidity Cycling at 850 nm and 1300 nm
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≦ 0.2
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〔dB/km〕
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Induced Attenuation at -10°C to +85°C , 90%R.H
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Watersoak Dependence at 850 nm and 1300 nm
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≦ 0.2
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〔dB/km〕
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Induced Attenuation at 23°C for 30 days
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Damp Heat Dependence at 850 nm and 1300 nm
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≦ 0.2
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〔dB/km〕
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Induced Attenuation at 85°C, 85%R.H., 30 days
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