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What is a Fiber Optic Splitter?

Fiber optic splitter is a passive optical device used to distribute optical signals, which can divide input optical signals into multiple outputs to meet the fiber optic access needs of multiple terminal devices. Optical splitters are a very important component in fiber optic links, widely used in fields such as fiber optic communication, fiber optic sensing, and fiber optic testing.


Optical Splitter

Optical Splitter Types

Optical splitters can be divided into two types based on their working principles: Planar Lightwave Circuit (PLC) optical splitters and Fused Biconic Tapered (FBT) optical splitters.

PLC Splitter

PLC splitter is an integrated waveguide optical power distribution device based on quartz substrate, manufactured using semiconductor technology to achieve optical signal distribution (usually 1 x N, or 2 x N).


Low loss, wide working wavelength range, able to meet the transmission needs of different wavelengths

Good uniformity of light distribution, allowing for uniform distribution of light signals to ends

Small size, light weight, and easy installation

Good reliability and stability, able to operate stably for a long time


Common applications include optical routing, optical network monitoring, and optical distributed sensing systems in optical communication systems

There are many different types of PLC fiber optic splitters on the market, common ones are:


  • Bare Fiber PLC Splitter
  • Micro-tube PLC Splitter
  • ABS PLC Splitter
  • LGX PLC Splitter
  • Rack Mount PLC Splitter

Bare Fiber PLC Splitter

Bare fiber PLC splitter has no connectors at all ends, leaving only the bare fiber. It is usually directly spliced with the fibers of the input and output optical cables, and is mainly suitable for infrequent disassembly occasions.

Bare Fiber PLC Splitter

Micro-tube PLC Splitter

Micro tube PLC splitter is a device that encapsulates PLC chips in micro steel pipes. It has a similar appearance to bare fiber splitters, but does not require fiber fusion during installation. It is mainly used for internal installation in junction boxes, terminal boxes, etc.


Micro-tube PLC Splitter

ABS PLC Splitter

ABS PLC splitter encapsulates the PLC chip in an ABS plastic box. It has a compact appearance and is more flexible in application, widely used in indoor wiring, fiber distributed sensing, and other scenarios in fiber optic access networks.

ABS PLC Splitter

LGX PLC Splitter

LGX PLC splitter has a sturdy metal box with standard fiber optic interfaces, making it easy to install and connect. It can be easily installed in fiber enclosures, terminal boxes, suitable for various plug and play network integration environments.

LGX PLC Splitter

Rack Mount PLC Splitter

Rack mounted PLC splitter is an optical splitter designed for installation in a 19 inch rack or cabinet. It typically has multiple fiber input and output interfaces, which can meet the requirements of high-density cabling in data centers or server rooms.

Rack Mount PLC Splitter

FBT Splitter

FBT optical splitters are made by fusing and stretching two or more optical fibers, so that the light entering a single fiber is separated between the output fibers in a predetermined proportion.


Simple raw materials, relatively simple manufacturing process, with lower manufacturing costs

Customizable spectral ratio, the spectral ratio can be monitored in real-time as needed to obtain different spectral ratios

Limited working wavelength, only three wavelengths are supported: 850nm, 1310nm, 1550nm


Suitable for general optical network applications, especially for small and medium-sized optical splitting needs

FBT Splitter

Functions of Optical Fiber Splitter

Optical Signal Segmentation

Optical splitter can divide the input optical signal into multiple output optical paths, allowing a single light source to provide optical signals to multiple targets simultaneously.

Optical Signal Distribution

Optical fiber splitters can distribute optical signals to multiple target locations, achieving multiplexing of optical signals, saving the amount of optical fibers and cabling costs.

Network Expansion

By dividing optical signals into multiple output optical signals , optical splitters can expand the coverage and number of connections of fiber optic networks.

Gcabling Fiber Optical Splitters

Gcabling manufacture and supply a wide range of fiber optic splitters. Here we list a few best-selling products.

Customize Your Optical Splitters

If our standard PLC splitters cannot meet the demand, we can do OEM / ODM according to your specifications.

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Split Ratio

14 + 14 =