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TFO XtremeBend Plus? (G.657.B3)

With bending radius R5mm, TFO XtremeBend Plus^? fibre provides excellent macrobending performance

and optical performance, this makes it easier for the network designers and operators to deal with much

more challenging installations and environments, widely used in the applications where ultra low bending-loss

at small bending radius are needed, such as FTTH, enterprise network, etc.

TFO XtremeBend Plus^? fibre exceeds the ITU-T Recommendation G.657.B3 and IEC 60793-2-50 type B6.b3

optical Fiber Specification, and fully compatible with ITU-T G.652.D and IEC 60793-2-50 type B1.3 fibre.

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Introduction

TFO XtremeBend Plus^?(G.657.B3)
Characteristics	Conditions	Parameters	Unit
Optical properties
Attenuation Coefficient	1310 nm	≤ 0.34	dB/km
	1285-1330 nm	≤ 0.37	dB/km
	1383 nm（after hydrogen aging）	≤ 0.31	dB/km
	1490 nm	≤ 0.23	dB/km
	1550 nm	≤ 0.20	dB/km
	1525 - 1575 nm	≤ 0.21	dB/km
	1625 nm	≤ 0.22	dB/km
Mode Field Diameter(MFD)	1310 nm	8.8 ± 0.4	μm
Mode Field Diameter(MFD)	1550 nm	10.0 ± 0.5	μm
Cut-Off Wavelength
Cable Cut-Off		≤ 1260	nm
Chromatic Dispersion
Zero Dispersion Wavelength		1300 - 1324	nm
Zero Dispersion Slope		≤ 0.090	ps/nm²/km
Dispersion Coefficient	1285 - 1339 nm	≤ \|3.4\|	ps/nm/km
	1550 nm	≤ 18.0	ps/nm/km
	1625 nm	≤ 22.0	ps/nm/km
Polarisation Mode Dispersion
PMD Coefficient	Uncabled fibre	≤ 0.10	ps/√km
PMD Coefficient	PMD link design value	≤ 0.06	ps/√km
Point Discontinuity	1310 nm	≤ 0.05	dB
Point Discontinuity	1550 nm	≤ 0.05	dB
Effective Group Refractive Index	1310 nm	1.4671
	1550 nm	1.4675
	1625 nm	1.4680
Geometrical Properties
Core Non-circularity		≤ 6	%
Cladding Diameter		125.0 ± 0.5	μm
Core/Cladding Concentricity Error		≤ 0.5	μm
Cladding Non-Circularity		≤ 0.7	%
Coating Diameter		242 ± 5	μm
Coating/Cladding Concentricity Error		≤ 8	μm
Mechanical properties
Proof Test	Fibre strain	≥ 1	%
	Fibre load	≥ 9	N
	Stress	≥ 100	kpsi
Dynamic Stress Corrosion Susceptibility Factor n_d	Unaged	≥ 20
Dynamic Stress Corrosion Susceptibility Factor n_d	Aged（30 days @ 85℃, 85% R.H.）	≥ 20
Macro Bending Sensitivity	1 turns of 10 mm radius, 1550 nm	≤ 0.03	dB
	1 turns of 10 mm radius, 1625 nm	≤ 0.1	dB
	1 turns of 7.5 mm radius, 1550 nm	≤ 0.08	dB
	1 turns of 7.5 mm radius, 1625 nm	≤ 0.25	dB
	10 turns of 5 mm radius, 1550 nm	≤ 0.15	dB
	10 turns of 5 mm radius, 1625 nm	≤ 0.45	dB
Coating Strip Force	Peak value	1.3 - 8.9	N
Fibre Curl		≥ 4	m
Environmental Properties
Accelerated Ageing（30days @ 85℃ 85% R.H.）	Induced attenuation（1310 and 1550 nm）	≤ 0.05	dB/km
Dry heat aging（30days @ 85℃）	Induced attenuation（1310 and 1550 nm）	≤ 0.05	dB/km
Temperature Cycling （-60℃- +85℃）	Induced attenuation（1310 and 1550 nm）	≤ 0.05	dB/km
Water Soak（30 days @ 23℃）	Induced attenuation（1310 and 1550 nm）	≤ 0.05	dB/km