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Optical fiber

Types of fibers and their technical characteristics

Single-mode fibers
Fiber brand Corning SMF-28®Ultra Corning SMF-28®Ultra 200 Corning SMF-28e+®LL Corning SMF-28®ULL Corning SMF-LEAF®
Geometric characteristics
Core-Clad Concentricity, not more mkm: 0,5 0,5 0,5 0,5 0,5
Cladding Diameter , mkm 125±0,7 125±0,7 125±0,7 125±0,7 125±0,7
Cladding Non-Circularity, not more, % 0,7 0,7 0,7 0,7 0,7
Coating Diameter , mkm 242±5 200±5 242±5 242±5 242±5
Transmission characteristics
Wavelength, nm 1310… 1625 1310… 1625 1310… 1625 1310… 1625 1383… 1625
Maximum Attenuation (dB/km):
1310 nm wavelength
1383 nm wavelength
1490 nm wavelength
1550 nm wavelength
1625 nm wavelength		 0,32
0,32
0,21
0,18
0,20 		0,32
0,32
0,21
0,18
0,20 		0,32
0,32
0,21
0,18
0,20 		0,28 -0,31
-
-
0,17-0,18
0,20-0,21 		0,4
0,32
0,26
0,19
0,21
Maximum Dispersion ps/(nm*km):
1310 nm wavelength
1550 nm wavelength
1625 nm wavelength
18
22
18
22
18
22
18
22
-
5,8-11,2
Polarization Mode Dispersion (PMD), ps/√km: 0,04 0,04 0,04 0,04 0,04
Zero Dispersion, ps/(nm*km): 0,092 0,092 0,092 0,092 -
Zero Dispersion Wavelength, nm 1304… 1324 1304… 1324 1304… 1324 1304… 1324 -
Cable Cutoff Wavelength, nm, not more: 1260 1260 1260 1260 -
Mode-Field Diameter, mkm
1310 nm wavelength
1550 nm wavelength		 9,2±0,4
10,4±0,5		 9,2±0,4
10,4±0,5		 9,2±0,4
10,4±0,5		 9,2±0,5
10,7±0,5		 -
9,6±0,4
Macrobend Loss, dB, λ=1550 nm/1625 nm
(1 turn х ø10,0 mm), dB:
(10 turns х ø15,0 mm), dB:
(100 turns х ø 25,0 mm), dB:		 0,5/1,5
0,05/0,3
0,01		 0,5/1,5
0,05/0,3
0,01

* At the customer’s request, the cable can be made with all types of Corning single-mode fiber of any type of another fiber manufacturer.

Multi-mode fibers
Fiber brand Corning ClearCurve OM2* Corning 62,5/125
ITU recommendation G.651.1 ISO /IEC11801
Geometric characteristics
Core diameter, mkm 50,0±2,5 62,5±3,0
Cladding diameter, mkm 125±1 125±2
Core-Clad Concentricity, not more mkm: 1,5 3,0
Cladding Non-Circularity, not more, % 1 2
Core Non-Circularity, not more, % 5 5
Coating Diameter , mkm 242±5 245±5
Transmission characteristics
Wavelength, nm 850….1300 850….1300
Maximum Attenuation (dB/km):
850 nm wavelength
1300 nm wavelength		 2,3
3,0		 0,6
0,7
Numerical Apperture 0,200±0,015 0,275±0,015
Broadband coefficient, MHz · km, not less than:
850 nm wavelength
1300 nm wavelength		 700
200		 500
500
Effective Group Refractive Index:
850 nm wavelength
1300 nm wavelength		 1,482
1,477		 1,496
1,491
Macrobend Loss (Mandrel R – 15 mm, 2 turns), dB:
850 nm wavelength
1300 nm wavelength		 0,1
0,3
Macrobend Loss (Mandrel R – 75 mm, 100 turns), dB:
850 nm wavelength
1300 nm wavelength		 0,5 0,5

* At the customer’s request, the cable can be made with Corning multi-mode fiber Corning ClearCurve OM3, ОМ4 or of any type of another fiber manufacturer.