25.2KM 50.4KM/Roll YOFC Corning Brand Bare Optical Fiber G.657A2 G.657A1

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Description:
Optical Fiber: Our 25KM 50.4KM Indoor Outdoor Use SM Optic Fiber is made with high-quality G657A1 and G657A2 glass bare optical fibers, ensuring reliable communication and optic cable producing functions.
Customizable Length: Available in various lengths, including 24.4km/roll, 48.8km/roll, and customized options, allowing you to choose the perfect fit for your specific needs.
Durable and Versatile: This optic fiber is suitable for FTTH, FTTB, and FTTP network applications, making it an ideal choice for various telecommunications and communication projects.
OEM Packaging: Our product comes in a carton box, making it easy to store and transport, and weighs according to the length you want, ensuring convenient handling and shipping.

Application:
• All types of fibre cables with different structures
• High performance optical network operating in GL FIBER band
• High speed optical routes for Fibre-to-the-Home networks
• Cables with extreme low bending requirements
• Small-sized fibre cable and optical component

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

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.

Type	Item	G652D (A class)	G657A1 (A class)
Transfer characteristic	Attenuation coefficient @1310nm	≤0.344dB/km	≤0.354dB/km
	Attenuation coefficient @1383nm（After hydrooxidation）	≤0.344dB/km	≤0.354dB/km
	Attenuation coefficient @1550nm	≤0.204dB/km	≤0.204dB/km
	Attenuation coefficient @1625nm	≤0.234dB/km	≤0.234dB/km
	Attenuation uniformity @1310nm	≤0.05dB/km	≤0.05dB/km
	Attenuation uniformity @1550nm	≤0.05dB/km	≤0.05dB/km
	Attenuation point discontinuity @1310nm	≤0.05dB/km	≤0.05dB/km
	Attenuation point discontinuity @1550nm	≤0.05dB/km	≤0.05dB/km
	Attenuation wavelength characteristic @1285nm-1310nm	≤0.04dB/km	≤0.05dB/km
	Attenuation wavelength characteristic @1525nm-1575nm	≤0.03dB/km	≤0.05dB/km
	Zero dispersion wavelength	1300-1324nm	1300-1324nm
	Zero dispersion slope	≤0.092ps/nm2.km	≤0.092ps/nm2.km
	Dispersion coefficient @1288-1339nm	≤3.5ps/nm.km	≤3.5ps/nm.km
	Dispersion coefficient @1271-1360nm	≤5.3ps/nm.km	≤5.3ps/nm.km
	Dispersion coefficient @1550nm	≤18ps/nm.km	≤18ps/nm.km
	Dispersion coefficient @1625nm	≤22ps/nm.km	≤22ps/nm.km
	Optical fiber cutoff wavelength	1130-1380nm	1130-1380nm
	Mode field diameter @1310nm	9.2±0.5µm	8.2-9.6µm
Mechanical characteristic	Fiber warping radius	≥4.0m	≥4.0m
Dimension parameter	Cladding diameter	125±1µm	125±0.7µm
	Core concentricity error	≤0.64µm	≤0.5µm
	Cladding out of roundness	≤1.0%	≤1.0%
	Coating diameter	235-252µm	235-252µm
	Cladding/coating concentricity error	≤12.0µm	≤12.0µm
	Coating out of roundness	≤6.0%	≤6.0%