TWENTSCHE Liangrui® Ultra-Micro 200μm Single-Mode Fiber

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TWENTSCHE Liangrui® Ultra-Micro 200μm Single-Mode Fiber

Liangrui® Tewei™ G.657.A1 200µm single-mode fiber features an optimized coating design. The fiber's glass portion is identical in size to the widely used conventional 245µm outer diameter fiber. Despite the significantly reduced coating diameter, it maintains the same superior optical, transmission, mechanical, and environmental performance as ITU-T G.657.A1 and IEC 60793-2-50 B6.a1 conventional 245µm coated fiber, and is fully compatible with these standards. It is suitable for transmission systems operating in the full 1260nm-1625nm wavelength range.
This full-spectrum fiber exhibits no water peaks, low attenuation, low chromatic dispersion, and low polarization mode dispersion (PMD), excellent attenuation uniformity, superior and stable geometric dimensional control, and superior macrobending performance (minimum bend radius 10mm).
TFO Liangrui® Special Micro™ G.657.A1 200µm single-mode optical fiber can significantly reduce the diameter of optical cables, lower the cost of cable laying and installation, and improve pipeline utilization, saving resources. It is widely used in FTTH, large-core optical cables, micro cables, etc.

Size:	25.2KM/ROLL 50.4KM/ROLL Other
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Liangrui® Ultra-Micro 200μm

Property	Condition	Specification Data	Unit
Optical Performance
Attenuation Coefficient	1310 nm	≤ 0.34	dB/km
	1285–1330 nm	≤ 0.37	dB/km
	1383 nm (after hydrogen aging)	≤ 0.31	dB/km
	1490 nm	≤ 0.23	dB/km
	1550 nm	≤ 0.20	dB/km
	1525–1575 nm	≤ 0.21	dB/km
	1625 nm	≤ 0.22	dB/km
Mode Field Diameter (MFD)	1310 nm	9.0 ± 0.3	μm
Mode Field Diameter (MFD)	1550 nm	10.2 ± 0.4	μm
Cutoff Wavelength
Cabled Cutoff Wavelength		≤ 1260	nm
Dispersion
Zero Dispersion Wavelength		1300–1324	nm
Zero Dispersion Slope		≤ 0.090	ps/nm²·km
Dispersion Coefficient	1285–1339 nm	≤ [3]	ps/nm·km
	1550 nm	≤ 17	ps/nm·km
	1625 nm	≤ 21	ps/nm·km
Polarization Mode Dispersion (PMD)
PMD Coefficient	Un-cabled Fiber	≤ 0.10	ps/√km
PMD Coefficient	PMD Link Design Value	≤ 0.06	ps/√km
Point Discontinuity	1310 nm	≤ 0.05	dB
Point Discontinuity	1550 nm	≤ 0.05	dB
Effective Group Refractive Index	1310 nm	1.4671
	1550 nm	1.4675
	1625 nm	1.4680
Geometric Properties
Core Non-Circularity		≤ 6	%
Cladding Diameter		125.0 ± 0.5	μm
Core/Cladding Concentricity Error		≤ 0.4	μm
Cladding Non-Circularity		≤ 0.6	%
Coating Diameter		190 ± 5	μm
Cladding/Coating Concentricity Error		≤ 8	μm
Mechanical Properties
Proof Test	Fiber Strain	≥ 1	%
	Fiber Load	≥ 9	N
	Stress	≥ 100	kpsi
Dynamic Fatigue Parameter ndnd	Before aging	≥ 20
Dynamic Fatigue Parameter ndnd	After aging (85°C, 85% RH, 30 days)	≥ 20
Macro-Bend Sensitivity	15mm radius, 10 turns, 1550 nm	≤ 0.25	dB
	15mm radius, 10 turns, 1625 nm	≤ 1.0	dB
	10mm radius, 1 turn, 1550 nm	≤ 0.75	dB
	10mm radius, 1 turn, 1625 nm	≤ 1.5	dB
Coating Strip Force	Peak	1.3 – 8.9	N
Fiber Curvature Radius		≥ 4	m
Environmental Performance
Damp Heat (85°C, 85% RH, 30 days)	Additional attenuation (1310 nm & 1550 nm)	≤ 0.05	dB/km
Dry Heat (85°C, 30 days)	Additional attenuation (1310 nm & 1550 nm)	≤ 0.05	dB/km
Temperature Cycle (–60°C to +85°C)	Additional attenuation (1310 nm & 1550 nm)	≤ 0.05	dB/km
Water Immersion (23°C, 30 days)	Additional attenuation (1310 nm & 1550 nm)	≤ 0.05	dB/km