Optical Characteristics:

Corning SMF-28® Ultra

Characteristics

Conditions

Specified Values

Units

Geometrical characteristics

Cladding diameter

125.0±1.0

um

Cladding non-circularity

≤

0.7

%

Coating diameter

242±5

um

Coating/cladding concentricity error

<12

um

Core/cladding concentricity error

≤

0.5

um

Optical characteristics

Attenuation

1310nm

≤

0.32

dB/km

1383nm

≤

0.32

dB/km

1490nm

≤

0.21

dB/km

1550nm

≤

0.18

dB/km

1625nm

≤

0.20

dB/km

Attenuation vs. Wavelength

max. A difference

1285~1330nm

≤

0.03

dB/km

1525~1575nm

≤

0.02

dB/km

Zero dispersion wavelength

1304~1324

nm

Zero dispersion slope

≤

0.092

ps/(nm2*km)

Polarization mode dispersion

PMD maximum individual fibre

≤

0.1

ps/km1/2

PMD design link value

≤

0.04

ps/km1/2

Cable cut off wavelength

≤

1260

nm

Mode field diameter

1310nm

8.8~9.6

um

1550nm

9.9~10.9

um

Group index of refraction

1310nm

1.4691

1550nm

1.4696

Environmental characteristics

1310nm 1550nm&1625nm

Temperature cycling

-60 to +85

≤

0.05

dB/km

Temperature-humidity cycling

-10 to +85 ,

4% to 98% RH

≤

0.05

dB/km

Water immersion

23 , 30 days

≤

0.05

dB/km

Dry heat

85 , 30 days

≤

0.05

dB/km

Damp heat

85 , 85%RH, 30 days

≤

0.05

dB/km

Mechanical specification

Proof test

≥

100

Kpsi

Macro bending induced loss

1Turns @10mm Radius

1550nm

≤

0.5

dB

1Turns @10mm Radius

1625nm

≤

1.5

dB

10Turns @15mm Radius

1550nm

≤

0.05

dB

10Turns @15mm Radius

1625nm

≤

0.30

dB

100Turns @25mm Radius

1310&1550&1625 nm

≤

0.01

dB

Dynamic stress corrosion susceptibility parameter

20

Cable Jacket Marking :

STRUCTURED CABLE PRODUCTS --- EFP-OS2LSZH-SIM-SCA --- SCP-EASYFIBER™ SC/SC SIMPLEX

OS2 9/125 2.0MM CORNING® SMF-28 ULTRA® LSZH EN50575 Dca-s1,d1,a1