Eine umfassende Übersicht über das Spleißen von Glasfasern: Eigenschaften und Arbeitsabläufe

Principles and Features of Fiber Splicing

Fiber optic splicing refers to the process of connecting two fiber optic cables into a complete transmission link, mainly used to extend cable length or repair fiber networks, and is critical for connecting different types of optical cables. Its core purpose is to ensure that light signals transmit continuously with minimal loss, which requires precise alignment of fiber cores; professional fusion splicing generally controls loss below 0.1 dB, and mechanical splicing below 0.5 dB. This is not a simple connection, but a rigorous operation including cleaning, cutting and precise alignment, divided into fusion splicing using heat welding and mechanical splicing fixed by tools. Optical fibers cannot be connected by twisting like copper wires, otherwise it will cause serious signal attenuation and damage. Compared with removable connectors, splicing forms a basically permanent connection with lower loss, which is more suitable for long-distance lines and fixed maintenance. High-quality splicing can build a smooth optical signal transmission path, effectively reduce data loss, and directly improve the stability and speed of the network, ensuring the smooth operation of services such as the Internet, video conferences and large file transmission.

Fiber Splicing: Benefits, Practices

Fiber optic splicing is an indispensable part of network operation, acting as an overlooked key support for fast and stable data transmission and supporting various services and urban network expansion. High-standard fusion splicing can extremely reduce signal loss and create firm, permanent connections, which, together with careful protection and regular inspection, guarantees long-term network stability. Although fusion splicing equipment has a higher upfront cost, it brings better economic benefits in the long run by cutting maintenance and downtime expenses, and skilled splicing technicians are also well-compensated. In addition to fusion splicing, mechanical splicing is another common connection method; practitioners in the telecom and broadband industries need to select the appropriate splicing type based on practical demands, as the two approaches differ in working principles, advantages and applicable scenarios.

To fully understand and master fiber splicing technology, a complete set of operating procedures must be carried out step by step, covering different splicing methods and post-splicing management.

1. Implementation of Mechanical Splicing

Complete the splicing of two optical fibers by adopting the mechanical splicing method. Employ a visual fault locator to calibrate and optimize the splice joint. Conduct fiber cleaving and repeat the whole procedure several times.

2. Fusion Splicing for Individual Fibers

Employ a fusion splicer to join two fibers and mount the splice protector afterwards. Use an OTDR for testing where possible. Check the fusion joint with a VFL, and observe the distinctions between fusion splicing and mechanical splicing during the test.

3.Ribbon Fiber Splicing (Mass Fusion Splicing)
Carry out fusion splicing for fiber ribbons in batches. If ribbon splicing equipment and fiber ribbons are available, proceed with the splicing work. Provided that an OTDR and sufficient fiber links are on hand, test all splice points with the device. Analyze and compare the splicing results of each individual fiber within the ribbon.

4.Installing Splice Joints in Splice Trays and Closures

After completing the fiber splicing, place all splice joints into the splice trays, then insert the trays into corresponding splice closures. Given the variety of splice closure designs, the exact placement practice may vary. However, the standard procedure for loose-tube cables is to handle one tube from each spliced cable per splice tray, with a maximum of 12 fibers (the typical capacity per tube) being spliced in a single tray.