HUACHENG Single-Mode Optical Fiber G.657.A2 Bending Insensitive Series

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HUACHENG Single-Mode Optical Fiber G.657.A2 Bending Insensitive Series

The Single-Mode Optical Fiber G.657 Bending Series is a high-performance product designed for high-bend environments, compliant with ITU-T G.657 and IEC standards. It features excellent bending resistance, effectively reducing additional attenuation when the fiber is bent at small radii, and is widely used in high-density wiring scenarios such as Fiber-to-the-Home (FTTH) and data centers.

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
HUACHENG G.657.A2 fiber 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 Fiber Specification.

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Model:
G.657.A2
Brand:
HUACHENG

G.657.A2 Bending Insensitive Single Mode fiber Datasheet

Specifications （G657A2）
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		1285-1330nm, in reference to 1310nm	≤0.03	[dB/km]
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)]
P M D	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	--