Has the broadband cold splice been phased out

Broadband cold splice (mechanical splicing) is not fully phased out but has largely been supplanted by fusion splicing in modern networks.

Current Usage

Cold splice, also known as mechanical or cold cure splicing, involves aligning fiber ends within a connector using adhesive or gel without heat or electricity. It remains a cost-effective and flexible option, particularly for small-scale installations, remote locations, or situations where power is unavailable. Its advantages include quick installation, minimal equipment requirements, and lower upfront costs compared to fusion splicing.

Shift to Fusion Splicing

Fusion splicing, which uses an electric arc to permanently weld fibers together, has become the preferred method for most broadband deployments. It offers lower signal loss, higher reliability, and long-term durability, making it ideal for high-speed networks, including 40G and 100G fiber applications. While cold splice is still used, especially in budget-conscious or temporary setups, fusion splicing dominates large-scale and high-performance networks due to its superior performance and cost-effectiveness per splice over time.

Industry Trends

The broader broadband industry is moving toward full fiber networks, phasing out older copper-based services and legacy connections. As networks upgrade to ultrafast Full Fibre, the demand for high-quality, low-loss splicing methods like fusion splicing increases, further reducing the prevalence of cold splice in new deployments. Cold splice remains relevant for certain field applications but is no longer the standard for modern broadband infrastructure.

Conclusion

In summary, cold splice has not been completely phased out, but its use is declining in favor of fusion splicing, which provides better performance, reliability, and long-term cost efficiency. Cold splice continues to be a viable option for specific scenarios, particularly where budget, speed, or lack of power are constraints.