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Mechanical Splicing

Published in Fiber Optics 3 mins read

How to Join an Optic Fiber Cable?

Joining optic fiber cables, also known as fiber optic splicing, is a precise process requiring specialized tools and expertise. It's not a DIY project for most individuals. There are primarily two methods: mechanical splicing and fusion splicing.

Mechanical splicing involves physically joining the fiber ends using a precisely aligned connector. This method is generally less expensive and faster than fusion splicing, but it's also less reliable and offers lower transmission quality. The fibers are butted together as tightly as possible and then encapsulated in a protective sleeve. This method was more common in the early days of fiber deployment. (Source: ppc-online.com)

Fusion Splicing

Fusion splicing is the most common and preferred method for joining fiber optic cables. This technique uses an electric arc to melt and fuse the ends of the two fibers together, creating a continuous, high-quality connection. (Source: YouTube video - Fibre Optic Cables - How are fiber optic cables joined?). Before fusion, the fibers must be precisely aligned using a specialized fusion splicer. This ensures minimal signal loss. (Source: YouTube video - Fibre Optic Cables - How are fiber optic cables joined?). The resulting splice is extremely strong and provides excellent optical performance.

Steps Involved in Fusion Splicing (Simplified):

  1. Prepare the Fibers: Carefully cleave the fiber ends to create a precise, flat surface.
  2. Align the Fibers: Use a fusion splicer to precisely align the fiber cores.
  3. Fuse the Fibers: The splicer generates an electric arc to melt and fuse the fiber ends.
  4. Inspect the Splice: Verify the splice quality using the splicer's optical testing capabilities.
  5. Protect the Splice: Encapsulate the splice with a protective sleeve or housing.

Tools and Equipment Required:

  • Fiber Cleaver: Creates precise fiber ends.
  • Fusion Splicer: Aligns and fuses the fiber ends.
  • Optical Power Meter: Measures signal strength after splicing.
  • Protective Sleeves/Housing: Protects the fused splice.

Important Considerations:

  • Fiber Type: Different fiber types (single-mode, multi-mode) require specific splicing techniques and equipment.
  • Safety Precautions: Always wear appropriate safety glasses and follow all safety guidelines when working with fiber optics.
  • Professional Expertise: Fiber optic splicing is a specialized task best performed by trained technicians. Improper splicing can lead to signal loss and system failure.

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