Bare Optical Glass Fiber G652D, G657a1 Singlemode SM 9/125um for OTDR Test Launch Cable
Optical Fiber is crafted from glass or plastic threads that transmit data as pulses of light, offering extremely high data transmission speeds. It can carry vast amounts of information over long distances with minimal signal loss. Unlike traditional copper cables, Optical Fiber is impervious to electromagnetic interference and radiofrequency interference, guaranteeing a clean and reliable signal. This quality makes Optical Fiber an ideal choice for telecommunications and long-haul networks.
We provide a diverse range of optical fiber products, including G.652.D, G.657.A1, G.657.A2, Multimode 50/125 OM2, OM3, OM4, OM5 and 62.5/125 OM1 and many more to cater to your specific needs.
Fiber Specifications:
Characteristics | Conditions | Specified values | Units | |
Optical Characteristics | ||||
Attenuation | 1310nm | ≤0.31 | [dB/km] | |
1550nm | ≤0.17 | [dB/km] | ||
1625nm | ≤0.20 | [dB/km] | ||
Attenuation vs. Wavelength | 1285-1330nm, in reference to1310 nm | ≤0.03 | [dB/km] | |
Max. α difference | 1525-1575nm, in reference to 1550 nm | ≤0.02 | [dB/km] | |
1285-1340nm | -3.5 to 3.5 | [ps/(nm·km)] | ||
Dispersion Coefficient | 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)] | |
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 (λCC) | -- | ≤1260 | [nm] | |
Mode Field Diameter(MFD) | 1310nm | 8.7-9.5 | [μm] | |
1550nm | 9.8-10.8 | [μm] | ||
Effective Group Index of Refraction(Neff) | 1310nm | 1.463 | -- | |
1550nm | 1.464 | -- | ||
Point Discontinuities | 1310nm | ≤0.05 | [dB] | |
1550nm | ≤0.05 | [dB] | ||
Geometrical Characteristics | ||||
Cladding Diameter | -- | 125.0±0.7 | [μm] | |
Cladding Non-Circularity | -- | ≤1.0 | [%] | |
Coating Diameter | -- | 235-255 | [μm] | |
Coating-Cladding Concentricity Error | -- | ≤12.0 | [μm] | |
Coating Non-Circularity | -- | ≤6.0 | [%] | |
Core-Cladding Concentricity Error | -- | ≤0.6 | [μm] | |
Curl(radius) | -- | ≥4 | [m] | |
Delivery Length1 | -- | Up to 25.2 | [km/spool] | |
Environmental Characteristics | 1310nm, 1550nm & 1625nm | |||
Temperature Dependence Induced Attenuation | -60ºC to +85ºC | ≤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 | 85ºC | ≤0.05 | [dB/km] | |
Mechanical Specification | ||||
Proof Test2 | -- | ≥9.0 | [N] | |
-- | ≥1.0 | [%] | ||
-- | ≥100 | [kpsi] | ||
Macro-bend Induced Attenuation | 100 Turns Around a Mandrel of 30 mm Radius | 1625nm | ≤0.05 | [dB] |
100 Turns Around a Mandrel of 25 mm Radius | 1310nm and 1550nm | ≤0.05 | [dB] | |
1 Turn Around a Mandrel of 16 mm Radius | 1550nm | ≤0.05 | [dB] | |
Coating Strip Force | typical average force | 1.5 | [N] | |
peak force | 1.3-8.9 | [N] | ||
Dynamic Fatigue Parameter(nd) | -- | ≥20 | -- |

Q1.What is your delivery time?
A: Generally,it will take 3 to 15 days after receiving your deposit.The specific
delivery time depends on the items and quantity of your order.
Q2.Can you produce according to the samples or drawing?
A: Yes,we can produce by your samples or technical drawings.We also can
design and build the molds for you.
Q3.What is your sample policy?
A: We can supply free sample of common fiber optics, but customers have to
pay courier cost and in massive order, we return the sample cost.
Q4. Do you test all your goods before delivery?
A: Yes, all goods are 100% test before delivery.
Q5.How do you assure long term business and keep good relationship?
A:1.We keep persistent improvement to make nice quality and unique products
with competitive price to ensure our customers' benefit.
2.We keep mutual benefit for customers who have supported our company!