Single Mode Fiber


Mechanical & Environmental Properties for Single Mode Fiber


Testing Parameters

EIA/TIA-455 FOTP Number

IEC-794-1 Test Method

EN 187000
Test Method

Maximum Increased loss

Tensile Load & Bending

33

E1

501

<0.05dB (90%); <0.15dB (100%)

Low & High Temperature Bend

37

E11

 

<0.05dB (90%); <0.15dB (100%)

Compression loading (Crush)

41

E3

504

<0.05dB (90%); <0.15dB (100%) 440N/km(250lb/in) load

Impact Resistance

25

E4

505

<0.05dB (90%); <0.15dB (100%)

Twist (Torson)

85

E7

508

<0.05dB (90%); <0.15dB (100%)

Cyclic Flexing (Repeated Bending)

104

E6

509

<0.05dB (90%); <0.15dB (100%)

External freezing

98

F6

 

<0.05dB (90%); <0.15dB (100%)

Temperature Cycling

3

F1

601

<0.05dB (90%); <0.15dB (100%)

Fiber Stripability

178

B6

 

<8.9N(2lbf) on unaged and aged fiber; >1.3N(0.3lbf) on unaged and aged fiber

Cable Aging

82

F5

 

<0.1dB (90%); <0.25dB (100%)

Water Penetration

82

F5

 

No flow after 24 hours from 1 meter length of cable

Compound Flow (Drip)

81

E14

 

80 C 24 hrs duration, no drip

Optical & Geometrical Properties for Single Mode Fibers


Parameter

 

Standard Single Mode Fiber per ITU-T G.652D

Non-zero
Dispersion Shifted fiber per ITU-T G.655

Non-zero
Dispersion Shifted fiber per ITU-T G.656

Units

Fiber Code

 

9

8

7

 

Attenuation, Loose Tube Cables

Standard

Metro Area

Long
Haul

 

 

@1310nm

≤0.35

-

-

dB/km

 

@1550nm

≤0.22

≤0.22

≤0.22

dB/km

 

@1625nm

≤0.25

≤0.26

≤0.26

dB/km

Attenuation, Tight Buffer
or Semi-Tight Cables

 

 

 

 

@1310nm

≤0.38

-

dB/km

 

@1550nm

≤0.28

-

dB/km

Dispersion

between 1260 and 1360nm (O Band)

≤3.5

NA-

-

ps/(nm*km)

 

between 1460 and 1530nm
(S Band)

-

-

2.0-7.0

ps/(nm*km)

 

between 1530 and 1565nm (C Band)

≤18

1.0-10.0

7.0-10.0

ps/(nm*km)

 

between 1565 and 1625nm (L Band)

≤22

7.0-12.0

10.0-14.0

ps/(nm*km)

Zero Dispersion Wavelength

1310±11

≤1520

≤1420

nm

Mode Field Diameter

@1300nm

9.2±0.5

-

 

um

 

@1550nm

10.4±1.0

8.5±0.6

9.0±0.5

um

Cable Cut-off  Wavelength

≤1260

≤1450

≤1310

nm

PMD (Individual fiber)

≤0.2

≤0.2

≤0.2

ps/km

Cladding Diameter

125±1.0

125±1.0

125±1.0

um

Core/Cladding Concentricity Error

≤0.5

≤0.5

≤0.6

um

Cladding Non-Circularity

≤1.0

≤1.0

≤1.0

%

Coating Diameter

245±10

245±10

245±10

um

Proof-Test Level

0.7

0.7

0.7

GN/m2

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