| Characteristics | Conditions | Specified values | Units |
| Optical Characteristics |
| Attenuation | 1550nm | ≤0.22 | [dB/km] |
| 1625nm | ≤0.24 | [dB/km] |
| Attenuation vs. Wavelength | 1525-1575nm, in reference to 1550nm | ≤0.02 | [dB/km] |
| Max. α Difference |
| Dispersion Coefficient | 1530-1565nm | 2.0-6.0 | [ps/(nm·km)] |
| 1565-1625nm | 4.5-11.2 | [ps/(nm·km)] |
| Zero Dispersion Wavelength(λ0) | -- | ≤1520 | [nm] |
| Dispersion Slope | 1550nm | ≤0.084 | [ps/(nm2·km)] |
| Typical dispersion slope | 1550nm | 0.075 | [ps/(nm2·km)] |
| PMD | Maximum Individual Fibre | -- | ≤0.2 | [ps/√km] |
| Link Design Value（M=20，Q=0.01%) | -- | ≤0.08 | [ps/√km] |
| Typical Value | -- | 0.04 | [ps/√km] |
| Cable Cutoff Wavelength (λCC) | -- | ≤1450 | [nm] |
| Mode field diameter (MFD) | 1550nm | 9.1-10.1 | [μm] |
| Effective Group Index of Refraction（Neff） | 1550nm | 1.469 | -- |
| 1625nm | 1.469 | -- |
| Point Discontinuities | 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 Length | -- | Up to 25.2 | [km/reel] |
| Environmental Characteristics 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 , 85% RH，for 30 days | ≤0.05 | [dB/km] |
| Dry Heat Aging | 85℃，30 days | ≤0.05 | [dB/km] |
| Mechanical Specifications |
| Proof Test | -- | ≥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 | 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 | -- |
Applications
YOFC LAPOSH® fibre is the commercialized fibre that has the largest effective area in the G.655 series. The fibre is suitable for application of high output power Erbium Doped Fibre Amplifier (EDFA) and multi-channel Dense Wavelength Division Multiplex (DWDM), and can be effectively applied in the high bit-rate both single-and multi-channel, long distance digital transmission links even without dispersion compensation.
Product standards
YOFC LAPOSH® fibre complies with or exceeds the ITU-T G.655.C/D recommendation and IEC-60793-2-50 B4.c/d Optical Fibre Specification.
YOFC tightens many parameters of fibre products so as to offer more conveniences to customers.
