产品与解决方案

TFO LightBend Plus? (G.657.A2)

Based on the optimum RIP design, TFO LightBend Plus^? fibre is a full spectrum fibre with zero water peak,

low attenuation and excellent uniformity, low PMD, excellent macrobending loss at minimum radius 7.5mm,

superior and stable geometrical size control level, this full spectrum fibre is applicable to transmission

system operating over the entire wavelength from 1260nm to 1625nm.

TFO LightBend Plus^? fibre meets or exceeds the ITU-T Recommendation G.657.A2 and IEC 60793-2-50

type B6.a2 Optical Fiber Specification and completely compatible with traditional ITU-T G.652.D and IEC

60793-2-50 type B1.3 fibre, widely used in all types of optical cables especially tight- buffer cable and

rubber-insulated cable.

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详细介绍

TFO LightBend Plus^?(G.657.A2)

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

8.7 ± 0.4

?m

1550 nm

9.9 ± 0.5

?m

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 link design value

≤ 0.06

ps/√km

Point Discontinuity

1310 nm

≤ 0.05

dB

1550 nm

≤ 0.05

dB

Effective Group Refractive Index

1310 nm

1.4676

1550 nm

1.4683

1625 nm

1.4685

Geometrical Properties

Core Non-circularity

≤ 6

%

Cladding Diameter

125.0 ± 0.5

?m

Core/Cladding Concentricity Error

≤ 0.5

?m

Cladding Non-Circularity

≤ 0.7

%

Coating Diameter

242 ± 5

?m

Coating/Cladding Concentricity Error

≤ 8

?m

Mechanical properties

Proof Test

Fibre strain

≥ 1

%

Fibre load

≥ 9

N

Stress

≥ 100

kpsi

Dynamic Stress Corrosion Susceptibility Factor n_d

Unaged

≥ 20

Aged（30 days @ 85℃, 85% R.H.）

≥ 20

Macro Bending Sensitivity

10 turns of 15 mm radius, 1550nm

≤ 0.03

dB

10 turns of 15 mm radius, 1625 nm

≤ 0.1

dB

1 turns of 10 mm radius, 1550 nm

≤ 0.1

dB

1 turns of 10 mm radius, 1625 nm

≤ 0.2

dB

1 turns of 7.5 mm radius, 1550 nm

≤ 0.2

dB

1 turns of 7.5 mm radius, 1625 nm

≤ 0.5

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

TFO LightBend Plus^?(G.657.A2)
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	8.7 ± 0.4	?m
Mode Field Diameter(MFD)	1550 nm	9.9 ± 0.5	?m
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	1.4676
	1550 nm	1.4683
	1625 nm	1.4685
Geometrical Properties
Core Non-circularity		≤ 6	%
Cladding Diameter		125.0 ± 0.5	?m
Core/Cladding Concentricity Error		≤ 0.5	?m
Cladding Non-Circularity		≤ 0.7	%
Coating Diameter		242 ± 5	?m
Coating/Cladding Concentricity Error		≤ 8	?m
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	10 turns of 15 mm radius, 1550nm	≤ 0.03	dB
	10 turns of 15 mm radius, 1625 nm	≤ 0.1	dB
	1 turns of 10 mm radius, 1550 nm	≤ 0.1	dB
	1 turns of 10 mm radius, 1625 nm	≤ 0.2	dB
	1 turns of 7.5 mm radius, 1550 nm	≤ 0.2	dB
	1 turns of 7.5 mm radius, 1625 nm	≤ 0.5	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