ITU-G.657B3 Easy Bend Fiber

ITU-G.657B3 Easy bend fiber

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Description

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Type:
Bend Insensitive Single-mode Optical Fiber (G.657.B3)

Standard:
The fiber complie with or exceed the technical specifications in ITU-T G.657.A1/A2/B2/B3.

Feature:
Minimum bend radius 7.5mm, superior anti-bending property;
Fully compatible with G.652 single-mode fiber. Full band (1260~1626nm) transmission;
Low PMD for high bit-rate and long distance transmission. Extremely low micro-bending attenuation, applicable for all optical cable types including ribbons;
High anti-fatigue parameter ensures service life under small bending radius.

Application:

All cable constructions, 1260~1626nm full band transmission, FTTH high speed optical routing, optical cable in small bend radius, small-size optical fiber cable and device.

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Easy bend fiber characteristics (ITU-G.657B3)

Category	Description		Specifications
Optical Specifications	Attenuation	@1310nm	≤0.35dB/km
		@1383nm	≤0.30dB/km
		@1490nm	≤0.24dB/km
		@1550	≤0.20dB/km
		@1625	≤0.23dB/km
	Attenuation Non-uniformity	@1310nm, 1550nm	≤0.05dB
	Point Discontinuity	@1310nm, 1550nm	≤0.05dB
	Attenuation vs Wavelength	@1285nm – 1330nm	≤0.03dB/km
	Attenuation vs Wavelength	@1525nm – 1575nm	≤0.02dB/km
	Zero Dispersion Wavelength		1304nm-1324nm
	Zero Dispersion Slope		≤0.092ps/ (nm²·km)
	Dispersion	@1550nm	≤18ps/ (nm·km)
	Dispersion	@1625nm	≤ 23ps/ (nm·km)
	PMD Link Design Value (m=20 Q=0.01%)		≤0.06ps√km
	Maximum Individual Fiber		≤0.2ps√km
	Cable Cut-off wavelength(λ cc)		≤1260nm
	Macro Bending Loss (1turns; Φ10mm)	@1550nm	≤0.30dB
	Macro Bending Loss (1turns; Φ10mm)	@1625nm	≤1.50dB
	Mode Field Diameter	@1310nm	8.6±0.4µm
	Mode Field Diameter	@1550nm	9.65±0.5µm
Dimensional Specifi-cations	Fiber Curl Radius		≥4.0m
	Cladding Diameter		125±0.7µm
	Core / Clad Concentricity		≤0.5µm
	Cladding Non-circularity		≤0.7%
	Coating Diameter		242±5µm
	Coating / Cladding Concentricity		≤12µm
Mechanical Specifi-cations	Proof Test		≥100kspi (0.7GPa)
Environment Specification 1310 & 1550 & 1625nm	Fiber Temperature Dependence	-60oC~ +85oC	≤0.05dB/km
	Temperature Humidity Cycling	-10oC~+85oC;up to 98%RH	≤0.05dB/km
	Heat Aging Induced Attenuation	85±2oC	≤0.05dB/km
	Water Immersion Induced	23±2oC	≤0.05dB/km
	Damp Heat	85oC at 85% RH	≤0.05dB/km