2022 Good Quality G657B3 - Single-mode G657B3 super bending resistant optical fiber – GELD

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The corporation upholds the philosophy of Be No.1 in high quality, be rooted on credit rating and trustworthiness for growth, will continue to serve outdated and new consumers from home and overseas whole-heatedly for Shutter Sc Adapter , "Optical Cable Materials " , Medium Voltage Cable , Our clients mainly distributed in the North America, Africa and Eastern Europe. we can supply high quality products with the very competitive price.

2022 Good Quality G657B3 - Single-mode G657B3 super bending resistant optical fiber – GELD Detail:

● The minimum bending radius can reach 5mm, which is fully compatible with G.652.D fiber.

● Low attenuation, meeting the communication requirements of O-E-S-C-L band.

● Used in various optical cables including ribbon cables, it has extremely low bending additional loss.

● Accurate geometric parameters and large die field diameter ensure low welding loss and high welding efficiency.

● High dynamic fatigue parameters ensure the service life under ultra-small bending radius.

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1. Optical fiber jumpers of various structures

2. FTTX high-speed optical routing

3. Optical cable with small bending radius

4. Small-size optical fiber device and optical device

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Characteristics		Conditions	Units	Specified values
Optical Characteristics
Attenuation		1310nm	dB/km	≤0.35
		1383nm	dB/km	≤0.35
		1550nm	dB/km	≤0.21
		1625nm	dB/km	≤0.23
Attenuation vs. Wavelength Max. A difference		1285~1330nm, @1310nm	dB/km	≤0.03
Attenuation vs. Wavelength Max. A difference		1525~1575nm, @1550nm	dB/km	≤0.02
Zero Dispersion Wavelength(λ₀)		–	nm	1300~1324
Zero Dispersion Slope(S₀)		–	ps/(nm2·km）	≤0.092
（PMD)	Max. Individual Fiber	–	ps/√km	≤0.1
	Link Design Value（M=20，Q=0.01%)	–	ps/√km	≤0.06
	Typical value	–	ps/√km	0.04
Cable cut-off wavelength（λ_cc)		–	nm	≤1260
Mode Field Diameter（MFD)		1310nm	μm	8.2~9.0
Mode Field Diameter（MFD)		1550nm	μm	9.1~10.1
Effective Group Index of Refraction(Neff)		1310nm		1.468
Effective Group Index of Refraction(Neff)		1550nm		1.469
Point discontinuity		1310nm	dB	≤0.05
Point discontinuity		1550nm	dB	≤0.05
Geometrical Characteristics
Cladding Diameter		–	μm	125.0±0.7
Cladding Non-Circularity		–	%	≤0.7
Coating Diameter		–	μm	235~245
Coating-Cladding Concentricity Error		–	μm	≤12.0
Coating Non-Circularity		–	%	≤6.0
Core-Cladding Concentricity Error		–	μm	≤0.5
Curl(radius)		–	m	≥4
Delivery Length		–	km per spool	Max. 50.4
Mechanical Specifications
Proof Test		–	N	≥9.0
		–	%	≥1.0
		–	kpsi	≥100
Macro-bend Induced Loss	1Turn Around a Mandrel of 10mm Radius	1550nm	dB	≤0.03
	1 Turn Around a Mandrel of 7.5mm Radius	1625nm	dB	≤0.1
	1 Turn Around a Mandrel of 7.5mm Radius	1550nm	dB	≤0.08
	1 Turn Around a Mandrel of 7.5mm Radius	1625nm	dB	≤0.25
	1 Turn Around a Mandrel of 5mm Radius	1550nm	dB	≤0.15
	1 Turn Around a Mandrel of ,5mm Radius	1625nm	dB	≤0.45
Coating stripping force		Typical average value	N	1.5
Coating stripping force		Peak value	N	1.3~8.9

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