What type of equipment is commonly used to splice fiber optic cables?

A fusion splicer is the correct equipment used for splicing fiber optic cables due to its ability to precisely align and join two fiber optic strands by melting their ends together with an electric arc. This process creates a permanent, low-loss connection that is essential for maintaining the integrity of the light signals transmitted through the fibers.

The fusion splicing method ensures minimal signal loss and reflection, which is critical in high-performance fiber optic networks. It also requires specialized training and equipment to operate effectively, making it a key tool for professionals in fiber optic installation and maintenance.

In contrast, a heat gun is used for applications such as softening materials or heat-shrinking protective tubing, but it is not suitable for the precise task of fiber splicing. An electric saw is more appropriate for cutting materials but does not engage in splicing fibers. Similarly, a crimping tool is designed for terminating cables with connectors rather than joining fiber optic strands, thus highlighting the specialized nature of the fusion splicer in fiber optic work.