G657A2 0.25mm fiber optic cable bare fiber

Short Description:

G657A2 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). The EasyBand^® 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. Jiahome’s G657A2 fiber is:

Apply for all kinds of optical fiber cables: central loose tube, loose tube stranded, slot core, fiber ribbon cable construction, and etc.

Apply to: optical system of lower loss and higher bandwidth; especially for soft cable ,small
package fiber optic components ,optical fiber coupler of metropolitan area network and other
special places;

Suits for O, E, S, C and L waveband (range from 1260nm to 1625nm), fully compatible with
G.652D, with advantages of low bending loss in compact space and better connectivity;

Meets the requirements of small installation diameter and small optical fiber processing
system, in telecommunication bureaus, buildings and independent shelters.

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PACKING DETAILS

G.657A2 FIBER PACKING

Application

• 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

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 n_d-value satisfying long operational lifetime in minimum bend radius

Specifications

G657A2 FIBER

Mode Field Diameter @ 1310 nm		8.6 ± 0.4 um
Mode Field Diameter @ 1550 nm		9.8-10.8 um
Cladding diameter		125.0 ± 0.7um
Core/cladding concentricity error		0.5um
Cladding non-circularity		0.7 %
Fiber curl radius		≥4um
Primary coating material		UV curable acrylate
Primary coating Diameter		245 ± 10um
Optical Characteristics
Attenuation	@ 1310nm	0.34 dB/km
	@ 1383nm± 3 nm	0.31dB/km
	@ 1550nm	0.20dB/km
Dispersion	@ 1288 ~ 1339nm	3.5 ps/nm×km
	@ 1550nm	18 ps/nm×km
Zero dispersion wavelength		1300 – 1324 nm
Dispersion slope at zero dispersion wavelength		0.092 ps/nm²×km
Cabled cut-off wavelength (lcc)		1260 nm
Polarization mode dispersion link value		0.2 ps/√_km
Mechanical Characteristics
Proof stress level		≥0.69 GPa
Effective group index of refraction Neff		1.466(at 1310nm)
Effective group index of refraction Neff		1.467 (at 1550nm)
10turns radius 15mm 1550nm		0.03dB
10turns radius 15mm 1625nm		0.1dB
1turns radius 10mm 1550nm		0.1dB
1turns radius 10mm 1625nm		0.2dB
1turns radius 7.5mm 1550nm		0.5dB
1turns radius 7.5mm 1625nm		1.0dB

G657A1 Mechanical Speciﬁcation for Comparation:

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]
		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]
Dispersion Coeﬃcient		1285-1340nm	-3.5 to 3.5	[ps/(nm·km)]
		1550nm	≤18	[ps/(nm·km)]
		1625nm	≤22	[ps/(nm·km)]
Zero Dispersion Wavelength(λ₀)		--	1300-1324	[nm]
Zero Dispersion Slope(S₀)		--	≤0.092	[ps/(nm²·km)]
Typical Value		--	0.086	[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]
G657A1 Mechanical Speciﬁcation
Proof Test		--	≥9.0	[N]
		--	≥1.0	[%]
		--	≥100	[kpsi]
Macro-bend Induced Loss	10 Turns Around a Mandrel of 15 mm Radius	1550nm	≤0.25	[dB]
	10 Turns Around a Mandrel of 15 mm Radius	1625nm	≤1.0	[dB]
	1 Turn Around a Mandrel of 10 mm Radius	1550nm	≤0.75	[dB]
	1 Turn Around a Mandrel of 10 mm Radius	1625nm	≤1.5	[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	--