G.657.A2 Plus Bending Insensitive Single-mode Fibre

Our Plus’s bending insensitive feature not only guarantees L-band applications but also allows for easy installation without excessive care when storing the fibre especially for FTTH networks application. Bending radii in fibre guidance ports can be reduced as well as minimum bend radii in wall and corner mountings.

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GL FIBER^® Plus bending insensitive single-mode fibre combines two attractive features: excellent low macro-bending sensitivity and low water-peak level. It is comprehensively optimized for use in O-E-S-C-L band (1260 -1625 nm). Our Plus's bending insensitive feature not only guarantees L-band applications but also allows for easy installation without excessive care when storing the fibre especially for FTTH networks application. Bending radii in fibre guidance ports can be reduced as well as minimum bend radii in wall and corner mountings.

Applications

• All types of fibre cables with different structures
• High performance optical network operating in O-E-S-C-L band
• High speed optical routes for Fibre-to-the-Home networks
• Cables with extreme low bending requirements
• Small-sized fibre cable and optical component

Product standards

GL FIBER^® Plus bending insensitive single mode fibre meets or exceeds the ITU-T Recommendation G.652.D/G.657.A1/G.657.A2/G.657.B2 including the IEC 60793-2-50 type B1.3/B6.a1/B6.a2/B6.b2 Optical Fibre Specification.

Characteristics

• Extremely high bending loss resistance in the 7.5 to 15 mm bending radius range
• Full compatibility with all G.652 fibres for any applications
• Low attenuation satisfying the operation demand in O-E-S-C-L band
• Low PMD satisfying high bit-rate and long distance transmission requirements
• Low bending loss for highly demanding cable designs including ribbons
• Accurate geometrical parameters that insure low splicing loss and high splicing efficiency
• High nd-value satisfying long operational lifetime in minimum bend radius

Easy bend fiber characteristics (ITU-G.657A2)

Characteristics		Conditions	Speciﬁed values	Units
Optical Characteristics
Attenuation		1310nm	≤0.35	[dB/km]
		1383nm(after H₂-aging)	≤0.35	[dB/km]
		1460nm	≤0.25	[dB/km]
		1490nm	≤0.23	[dB/km]
		1550nm	≤0.21	[dB/km]
		1625nm	≤0.23	[dB/km]
Attenuation vs. Wavelength Max. α diﬀerence		1285-1330nm, in reference to 1310nm	≤0.03	[dB/km]
Attenuation vs. Wavelength Max. α diﬀerence		1525-1575nm, in reference to 1550nm	≤0.02	[dB/km]
Zero Dispersion Wavelength(λ₀)		--	1300-1324	[nm]
Zero Dispersion Slope(S₀)		--	≤0.092	[ps/(nm²·km)]
PMD	Maximum Individual Fibre	--	≤0.1	[ps/√km]
	Link Design Value（M=20，Q=0.01%)	--	≤0.06	[ps/√km]
	Typical Value	--	0.04	[ps/√km]
Cable Cutoﬀ Wavelength (λ_CC)		--	≤1260	[nm]
Mode Field Diameter（MFD）		1310nm	8.4-9.2	[μm]
Mode Field Diameter（MFD）		1550nm	9.3-10.3	[μm]
Eﬀective Group Index of Refraction（N_eﬀ ）		1310nm	1.466	--
Eﬀective Group Index of Refraction（N_eﬀ ）		1550nm	1.467	--
Point Discontinuities		1310nm	≤0.05	[dB]
Point Discontinuities		1550nm	≤0.05	[dB]
Geometrical Characteristics
Cladding Diameter		--	125.0±0.7	[μm]
Cladding Non-Circularity		--	≤0.7	[%]
Coating Diameter		--	235-245	[μm]
Coating-Cladding Concentricity Error		--	≤12.0	[μm]
Coating Non-Circularity		--	≤6.0	[%]
Core-Cladding Concentricity Error		--	≤0.5	[μm]
Curl(radius)		--	≥4	[m]
Delivery Length		--	Up to 50.4	[km/reel]
Environmental Characteristics		1310nm, 1550nm & 1625nm
Temperature Dependence Induced Attenuation		-60℃ to +85℃	≤0.05	[dB/km]
Temperature-Humidity Cycling Induced Attenuation		-10°C to +85°C, 98% RH	≤0.05	[dB/km]
Watersoak Dependence Induced Attenuation		23°C, for 30 days	≤0.05	[dB/km]
Damp Heat Dependence Induced Attenuation		85°C and 85% RH, for 30 days	≤0.05	[dB/km]
Dry Heat Aging		85℃, for 30 days	≤0.05	[dB/km]
Mechanical Speciﬁcation
Proof Test		--	≥9.0	[N]
		--	≥1.0	[%]
		--	≥100	[kpsi]
Macro-bend Induced Attenuation	10 Turns Around a Mandrel of 15 mm Radius	1550nm	≤0.03	[dB]
	10 Turns Around a Mandrel of 15 mm Radius	1625nm	≤0.1	[dB]
	1 Turn Around a Mandrel of 10 mm Radius	1550nm	≤0.1	[dB]
	1 Turn Around a Mandrel of 10 mm Radius	1625nm	≤0.2	[dB]
	1 Turn Around a Mandrel of 7.5 mm Radius	1550nm	≤0.5	[dB]
	1 Turn Around a Mandrel of 7.5 mm Radius	1625nm	≤1.0	[dB]
Coating Strip Force		typical average force	1.5	[N]
Coating Strip Force		peak force	1.3-8.9	[N]
Dynamic Fatigue Parameter(n_d)		--	≥20	--

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Easy bend fiber characteristics (ITU-G.657A2)

Characteristics		Conditions	Speciﬁed values	Units
Optical Characteristics
Attenuation		1310nm	≤0.35	[dB/km]
		1383nm(after H₂-aging)	≤0.35	[dB/km]
		1460nm	≤0.25	[dB/km]
		1490nm	≤0.23	[dB/km]
		1550nm	≤0.21	[dB/km]
		1625nm	≤0.23	[dB/km]
Attenuation vs. WavelengthMax. α diﬀerence		1285-1330nm, in reference to 1310nm	≤0.03	[dB/km]
Attenuation vs. WavelengthMax. α diﬀerence		1525-1575nm, in reference to 1550nm	≤0.02	[dB/km]
Zero Dispersion Wavelength(λ₀)		–	1300-1324	[nm]
Zero Dispersion Slope(S₀)		–	≤0.092	[ps/(nm²·km)]
PMD	Maximum Individual Fibre	–	≤0.1	[ps/√km]
	Link Design Value（M=20，Q=0.01%)	–	≤0.06	[ps/√km]
	Typical Value	–	0.04	[ps/√km]
Cable Cutoﬀ Wavelength (λ_CC)		–	≤1260	[nm]
Mode Field Diameter（MFD）		1310nm	8.4-9.2	[μm]
Mode Field Diameter（MFD）		1550nm	9.3-10.3	[μm]
Eﬀective Group Index of Refraction（N_eﬀ ）		1310nm	1.466	–
Eﬀective Group Index of Refraction（N_eﬀ ）		1550nm	1.467	–
Point Discontinuities		1310nm	≤0.05	[dB]
Point Discontinuities		1550nm	≤0.05	[dB]
Geometrical Characteristics
Cladding Diameter		–	125.0±0.7	[μm]
Cladding Non-Circularity		–	≤0.7	[%]
Coating Diameter		–	235-245	[μm]
Coating-Cladding Concentricity Error		–	≤12.0	[μm]
Coating Non-Circularity		–	≤6.0	[%]
Core-Cladding Concentricity Error		–	≤0.5	[μm]
Curl(radius)		–	≥4	[m]
Delivery Length		–	Up to 50.4	[km/reel]
Environmental Characteristics		1310nm, 1550nm & 1625nm
Temperature Dependence Induced Attenuation		-60℃ to +85℃	≤0.05	[dB/km]
Temperature-Humidity Cycling Induced Attenuation		-10°C to +85°C, 98% RH	≤0.05	[dB/km]
Watersoak Dependence Induced Attenuation		23°C, for 30 days	≤0.05	[dB/km]
Damp Heat Dependence Induced Attenuation		85°C and 85% RH, for 30 days	≤0.05	[dB/km]
Dry Heat Aging		85℃, for 30 days	≤0.05	[dB/km]
Mechanical Speciﬁcation
Proof Test		–	≥9.0	[N]
		–	≥1.0	[%]
		–	≥100	[kpsi]
Macro-bend Induced Attenuation	10 Turns Around a Mandrel of 15 mm Radius	1550nm	≤0.03	[dB]
	10 Turns Around a Mandrel of 15 mm Radius	1625nm	≤0.1	[dB]
	1 Turn Around a Mandrel of 10 mm Radius	1550nm	≤0.1	[dB]
	1 Turn Around a Mandrel of 10 mm Radius	1625nm	≤0.2	[dB]
	1 Turn Around a Mandrel of 7.5 mm Radius	1550nm	≤0.5	[dB]
	1 Turn Around a Mandrel of 7.5 mm Radius	1625nm	≤1.0	[dB]
Coating Strip Force		typical average force	1.5	[N]
Coating Strip Force		peak force	1.3-8.9	[N]
Dynamic Fatigue Parameter(n_d)		–	≥20	–