TrueWave REACH Optical Fiber allows Dense Wavelength Division Multiplexing (DWDM) transmission channels to be used over the full S, C and L-bands (1460 to 1625 nm). Not only is the fiber fully compatible with erbium doped fiber amplifiers (EDFAs), it is also optimized for the fast emerging distributed Raman amplification technology.
TrueWave REACH Optical Fiber allows Dense Wavelength Division Multiplexing (DWDM) transmission channels to be used over the full S, C and L-bands (1460 to 1625 nm). Not only is the fiber fully compatible with erbium doped fiber amplifiers (EDFAs), it is also optimized for the fast emerging distributed Raman amplification technology.
TrueWave REACH Optical Fiber provides maximum performance for optically amplified systems over longer distances with higher capacity. TrueWave REACH Fiber meets and exceeds both the ITU-T G.655 C and E and G.656 standards. Optimized for Raman amplification, the fiber minimizes the need for complex dispersion and dispersion slope compensators and additional amplification. With fully matched dispersion compensation modules available in the C-, L-, and S-bands, TrueWave REACH Fiber enables the highest performance and minimal system cost for 10 and 40 Gb/s transmission and beyond.
TrueWave REACH Optical Fiber allows Dense Wavelength Division Multiplexing (DWDM) transmission channels to be used over the full S, C and L-bands (1460 to 1625 nm). Not only is the fiber fully compatible with erbium doped fiber amplifiers (EDFAs), it is also optimized for the fast emerging distributed Raman amplification technology.
| Wide Operating Band:
Ideally, the chromatic dispersion of an optical fiber should have a constant, moderate value over the entire operating wavelength region. However, the dispersion of all fibers changes with wavelength, as determined by the dispersion slope. The smaller the slope, the less the dispersion changes with wavelength. For optimum performance over the C-, L-, and S-bands, dispersion slope should be minimized. TrueWave REACH Fiber fulfills the G.656 requirement based on its low dispersion slope. The small dispersion slope of TrueWave REACH Fiber allows its minimum dispersion to be increased to better suppress the four wave mixing (FWM) nonlinearity. At the same time, this keeps the fiber’s maximum dispersion small enough for signals to travel over long distances with minimum need for dispersion and dispersion slope compensation over the C-, L-, and S-bands. Finally, TrueWave REACH Fiber keeps the ZDW ≤ 1405 nm in order to avoid FWM between Raman pump source and transmission signal for optimum distributed Raman amplification. |
| Precise Dispersion Compensation: The highest capacity systems today use the wide spectral bands available in optical fibers. To achieve long distance transmission for 10 Gb/s systems, and especially for 40 Gb/s systems, precise dispersion compensation over the full extent of these bands is required. TrueWave REACH Fiber is optimized to achieve precise wideband dispersion over the C-, L-, and S-bands. TrueWave REACH Fiber’s dispersion properties result in a low relative dispersion slope across all three bands. This makes it easier to create the precise wideband compensating modules needed for high capacity systems. Coupled with Lightera’s RightWave Dispersion Compensating Modules (DCM), TrueWave REACH Fiber provides unsurpassed system performance compared with other NZDF products. |
| Flexible Amplification: TrueWave REACH Fiber allows DWDM transmission channels to be used over the full S, C and L-bands (1460 to 1625 nm). Amplifier technologies used may be both EDFAs and the fast emerging distributed Raman amplification technology. Distributed Raman amplification technology shows advantages in reducing system noise and enabling wideband amplification as compared to today’s EDFAs. How well the transmission fiber can utilize this new amplifier technology is defined by the Raman Gain Efficiency. |
| Optimal Raman Gain Efficiency:
TrueWave REACH Fiber has been optimized to have one of the best Raman gain efficiencies compared to other transmission fibers due to the optimized effective area of the fiber. A typical value for TrueWave REACH Fiber is 0.60 W-1 km-1 compared to 0.40 – 0.45 for Standard Single-Mode Fiber and Large Effective Area NZDF respectively. |
| Product Specifications | ||
|---|---|---|
| Description | TrueWave REACH® Optical Fiber |
|
| Physical Characteristics | ||
| Clad Diameter | 125.0 ± 0.7 μm | |
| Clad Non-Circularity | ≤ 0.7 % | |
| Core/Clad Concentricity Error (Offset) | ≤ 0.5 μm, < 0.2 μm typically | |
| Coating Diameter (Uncolored) | 237 – 247 μm | |
| Coating-Clad Concentricity Error (Offset) | ≤ 12 μm | |
| Tensile Proof Test | 100 kpsi (0.69 GPa) | |
| Coating Strip Force | Range: 1.0 N ≤ CSF ≤ 8.9 N | |
| Fiber Curl Radius | ≥ 4 m | |
| Dynamic Fatigue Parameter (Nd) | ≥ 20 | |
| Reel Lengths | Standard as well as customer specific lengths are available up to 50.4 km | |
| Attenuation Uniformity / Point Discontinuities at 1550 nm | ≤ 0.05 dB | |
| Chromatic Dispersion | ||
| C-Band 1530-1565 nm | 5.5 – 8.9 ps/nm-km | |
| L-Band 1565-1625 nm | 6.9 – 11.4 ps/nm-km | |
| Dispersion Slope at 1550 nm | ≤ 0.045 ps/nm² -km | |
| S – L bands 1460 – 1625 nm | 2.0 – 11.4 ps/nm-km | |
| Zero Dispersion Wavelength | ≤ 1405 nm | |
| Chromatic Dispersion at 1310 nm | -5 ps/nm-km (typical) | |
| Group Refractive Index | ||
| Group Refractive Index at 1310 nm | 1.471 | |
| Group Refractive Index at 1550 nm | 1.470 | |
| Group Refractive Index at 1625 nm | 1.470 | |
| Mode Field Diameter | 8.6 ± 0.4 µm @ 1550 nm | |
| Effective Area | 55 µm² (typical) @ 1550 nm | |
| Cable Cut-off Wavelength (λcc) | ≤ 1310 nm | |
| Polarization Mode Dispersion (PMD)¹ | ||
| Fiber PMD Link Design Value (LDV)² | ≤ 0.04 ps/√km | |
| Maximum Individual Fiber | ≤ 0.1 ps/√km | |
| Typical Fiber LMC PMD | ≤ 0.02 ps/√km | |
| Note | ¹ As measured with low mode coupling (LMC) technique in fiber form, value may change when cabled. Check with your cable manufacturer for specific PMD limits in cable form. ² The PMD Link Design Value complies with IEC 60794-3, September 2001 (N = 20, Q = 0.01%). Details are described in IEC 61282-3 TR Ed 2, October 2006. |
|
| Typical Raman Gain Efficiency | ≥ 0.6 (1/W.km) using 1450 nm pump source | |
| Optical Characteristics (after hydrogen aging) | ||
|---|---|---|
| Attenuation at | Maximum | Typical |
| 1310 nm | ≤ 0.4 dB/km | ≤ 0.35 dB/km |
| 1383 nm | ≤ 0.4 dB/km | ≤ 0.35 dB/km |
| 1450 nm | ≤ 0.26 dB/km | ≤ 0.25 dB/km |
| 1550 nm | ≤ 0.22 dB/km | ≤ 0.20 dB/km |
| 1625 nm | ≤ 0.24 dB/km | ≤ 0.21 dB/km |
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