Fiber Optic Splicing

Fiber splicing is the process of joining two fiber optic cables together so that data can travel smoothly from one cable to the other. Like connecting two pieces of very thin glass wires to make a single, continuous path for information.

Fiber splicing is important because fiber cables are the backbone of the internet and networks. If a fiber cable breaks or gets damaged, it can cause signal loss or network downtime. Fiber cabling and Splicing companies can repairs the cable or extends it to reach new areas.

Different types of splicing

1.      Indoor splicing

2.      Out door spicing

Indoor Splicing

Indoor fiber splicing is usually done in controlled places like data centers, telecom rooms, and office network rooms. These areas often have many cables installed close together, so proper cable management and fire safety are very important.

The main risks in indoor environments include fire, smoke, and cable congestion due to the large number of cables. Because of this, indoor splicing systems are designed to be safe, easy to access, and simple to maintain.

Indoor fiber closures are normally lightweight, compact, and easy to handle. They are often installed in racks or mounted on walls, which helps keep the cables organized and allows technicians to access them quickly for maintenance or upgrades.

For indoor installations, tight-buffer fiber cables are commonly used because they are flexible and easy to install. These cables usually have PVC or LSZH (Low Smoke Zero Halogen) jackets, which are safer for indoor environments as they reduce harmful smoke in case of fire.

Outdoor Splicing

Outdoor fiber splicing is performed in tough environments such as aerial networks, underground ducts, buried cables, and roadside telecom installations. These locations are exposed to weather and physical conditions that can affect the fiber network.

Common risks outdoors include water entry, sunlight (UV rays), temperature changes, and physical damage. To handle these conditions, outdoor splicing equipment must provide strong protection against the environment.

Outdoor fiber closures are designed to be strong and weather-resistant. They usually have gel sealing, IP-rated protection, and durable construction to prevent moisture and dust from damaging the fiber connections.

Outdoor installations generally use loose-tube fiber cables, which are better suited for environmental changes. These cables are often armored for extra protection and covered with polyethylene (PE) outer jackets to resist moisture, sunlight, and mechanical damage.

Step for the splicing :

1. Prepeare the cable for splicing  in fber panel

2. Strip the protective coating from the fiber.

3. Clean the fiber core  using alcohol strip / pad

4. Precisely cut the fiber using a sharp cleaver.

5. Align the fibers in a splicer mechne care fully .

6. Use electric arc heat to fuse the fibers together.

7. Protect the splice with a sleeve.

Advantages

• Very low signal loss

• Permanent connection

• High reliability

• Can extend the fiber

• Re pair of the broken cable

Disadvantages

• Requires expensive equipment

• Skilled technicians required

Why experienced fiber splicing technicians?

Its very important to approach fiber cabling and splicing companies and Experienced fiber splicing technicians are needed because splicing fiber cables is a very delicate job. Fiber cables are like thin glass wires that can break easily. The ends of the fibers must be cut and lined up perfectly so the signal can pass without any loss.

It also requires special machines and tools that need skill to use. After connecting the fibers, they must be protected properly so they don’t get damaged later. Experienced technicians make sure the connection is strong, reliable, and works well.

Therefore experienced Fiber splicing technicians is required to fix, connect, or extend fiber optic cables, keeping networks running smoothly

Tools Used in Fiber Splicing

• Fiber optic stripper

• Fiber cleaver

• Fusion splicer

• Alcohol wipes / pad

• Splice protection sleeves / different size availabke

Color code of the fiber splicing

Yes! Normaly fiber cabling and splicing companies following the standered color code . Fiber optic cables have standard colours for each fiber, which makes it easy for technicians to know which fiber is which. This helps them connect the fibers correctly and keep everything organized, especially when working with long cables or many fibers.

Standard Fiber Colour Code (Most Common – “TIA/EIA-598-C”)

Most UAE fiber cabling companies follow this TIA/EIA standard, sometimes referred to as the “A” colour code standard.

Fiber Number	Colour
1	Blue
2	Orange
3	Green
4	Brown
5	Slate (Gray)
6	White
7	Red
8	Black
9	Yellow
10	Violet
11	Rose (Pink)
12	Aqua

Note: For cables with more than 12 fibers, the colour sequence repeats using stripes or coloured rings on the fiber.

How can we check the fiber ?

After the splicing we can check the fiber optic cable with special testing tools to make sure the connection is working properly with the help of OTDR / OLTS

OTDR (Optical Time Domain Reflectometer)

An OTDR is a device used to test and check the condition of fiber optic cables. Its main purpose is to find problems in the fiber link and analyze the cable performance. The OTDR works by sending small pulses of light through the fiber cable and measuring the light that is reflected back.

With this method, the device can detect issues such as fiber breaks, sharp bends, or poor splicing points. It can also show how far the problem is from the testing point. The results are displayed in the form of a graph or trace, which helps technicians understand the condition of the fiber cable along its entire length. OTDR is mainly used for troubleshooting, maintenance, and detailed fiber analysis.

OLTS (Optical Loss Test Set)

An OLTS is used to measure the total signal loss in a fiber optic link. It works using two devices — a light source and a power meter. The light source sends a signal through the fiber cable, and the power meter measures how much light reaches the other end.

By comparing the transmitted and received light levels, technicians can calculate the total loss in the fiber link, usually measured in decibels (dB). Unlike OTDR, OLTS cannot show the exact location of a fault in the cable. It only shows the overall performance of the fiber connection. Because of this, OLTS is commonly used for fiber link certification and final testing after installation.