A multi-core optical fiber is an advanced type of optical fiber that contains multiple independent cores within a single cladding. Each core can transmit data separately, significantly increasing the fiber’s data capacity compared to traditional single-core fibers.

The 7-core Fan-in/Fan-out device for multi-core fiber acts as an advanced optical signal distributor. It enables the connection and signal distribution across seven fiber cores, helping to achieve better data throughput and reduced fiber footprint. By consolidating multiple cores into a single device, it provides a compact solution for complex optical networks, especially in scenarios where space and scalability are critical.

Multi-core fiber couplers are used to combine or distribute signals across multiple fiber cores in a single optical cable. These couplers find applications in telecommunications, data centers, and industrial automation, where high data transmission rates and efficient fiber management are essential. They are particularly useful in optical networks that require high-density interconnects or the handling of multiple channels simultaneously.

A 4-core Fan-in/Fan-out device for multi-core fiber is an optical coupling component that helps manage the distribution of signals between multiple fiber cores. This device enables efficient signal routing, allowing four individual cores to be connected and distributed to various ports or applications, improving performance and reducing signal loss. It is commonly used in high-density fiber networks and data centers.

Absolutely. With the proper ruggedization and armoring, our Multi-Core Fiber (MCF) is fully adaptable for submarine optical cable systems:

• Pressure & Water-Block Protection
  We integrate high-density polyethylene (HDPE) or polyurethane sheathing, water-blocking gels or tapes, and central strength members to withstand deep-sea hydrostatic pressures and prevent water ingress.

• Armoring & Mechanical Durability
  Steel wire or stranded aluminum armor layers can be applied to protect against fishing, abrasion, and bending loads encountered in seabed installation and anchor drags.

• Repeaters & Line-Terminal Compatibility
  Our MCF maintains ultra-low attenuation (≤ 0.22 dB/km @ 1550 nm) and high core isolation (> 55 dB) across all cores, ensuring seamless integration with submarine repeaters and line-terminal equipment designed for high-fiber‐count cable.

• Custom Fiber Counts & Jacket Designs
  Whether you need 4-, 7-, 12-core or higher counts, we tailor the cable diameter, jacketing materials, and armor layers to meet ITU-T G.654/G.655 standards—or any bespoke subsea specification.

• Environmental & Qualification Testing
  Every submarine MCF design undergoes rigorous qualification including long-term soak tests, crush testing, and cyclic bend testing at low temperatures (down to –10 °C) to guarantee > 25-year service life.

MCF Fan-in/Fan-out (FIFO) devices are critical in multi-core fiber networks because they ensure efficient signal routing between multiple fiber cores while maintaining high performance. The FIFO (First In, First Out) mechanism ensures that data is transmitted in the correct order, which is essential for network integrity. These devices are widely used in high-speed optical communication systems, such as 5G networks, data centers, and high-performance computing.