Super Small Attenuation Optical Fiber with Large Transmit Cross Section Area.

In order to build next generation optical transmission network, Engineers are seeking to develop an optical fiber with ultra fast transmission speed, ultra big capacity, and ultra long transmission distance. With the effort of China Engineers, this kind of optical fiber, ZDYB is now available. Changfei Engineers have developed a fiber whose performance is better in all aspects than the regulations in both ITU-T G.654.B/E standards and IEC 60793-250B1.2 standards. It is fabricated by using an ultra-low attenuation process combined with an auxiliary depressed cladding profile structure. The large core diameter profile design is beneficial to increase the effective area of the fiber and suppress nonlinear effects. At the same time, a special reduction attenuation process is adopted to reduce the fiber. The defect reduces the doping of the fiber, so that the fiber has a smaller Rayleigh scattering coefficient, which can effectively reduce the window attenuation of 1550 nm to less than 0.17 dB/km. Thanks to its special process design, ZDYB ultra-strong fiber also has excellent resistance to hydrogen aging and can meet the demanding hydrogen loss requirements. Due to its unique depressed cladding cross-section structure, the fiber has excellent macrobend performance while ensuring large mode field diameter. In addition, the optimized coating and coating process allows the fiber to have a higher nd value to guarantee a 25-year lifetime. As mentioned above, ZDYB ultra-strong fiber, with its excellent performance, can support current 40G and 100G systems, and even meet the needs of future 400G or 400G systems, so ZDYB super fiber is the best choice for land long distance transmission and submarine FO cable.

Product advantages

1. Larger effective area reduces nonlinear effects and provides higher signal power for transmission systems

2. Enable long distance, multi-wavelength, high speed transmission

3. Lower attenuation loss for long distance transmission requirements

4. Reduces the number of repeaters and minimizes CAPEX and OPEX

5. Lower bending additional losses to meet complex fiber cabling conditions and various cable construction requirements

6. Good resistance to hydrogen loss, high nd value to ensure the reliability of fiber optic cable system

7. Compatible with current systems and meeting future system and technology development requirements