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FTB Coupler

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Input Channel Number: 1/2
Splitting Ratio: Equal or unequal splitter ratios
One or two inputs with an output maximum of 32 fibers.
Widely used in split configurations that are no more than 1×4
Connector: no connector / FC / SC / LC / or other type
Operating Wavelength:850nm, 1310nm, 1550nm
Operation Temperature: -5 to 75℃

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Product Details:

The FBT Coupler, also known as the fused biconical taper splitter or FBT coupler, is a type of fiber optic splitter that appears similar to the bare PLC splitter and mini steel tube PLC splitter. The FBT splitter uses traditional technology to weld several fibers together from the side of the fiber. To align the fibers, they are heated at a specific location and length. Due to their fragility, the fused fibers are protected by a glass tube made of epoxy and silica powder. The inner glass tube is then covered by a stainless steel tube and sealed with silicon. Over time, the quality of FBT fiber splitter has improved, making them a cost-effective solution for deployment. FBT couplers are widely used in passive optical networks, particularly in split configurations that are no more than 1×4.

 

Features of FTB splitter

  • Low insertion loss
  • low polarization dependent loss
  • Various Split Ratio: 1/99，2/98, 10/90，50/50
  • Compact packing size
  • High power
  • Excellent Environmental & Mechanical Stability and Reliability
  • Comply with Telcordia 1209/1221

 

Order Information

  • Input Channel Number: 1/ 2
  • Splitting Ratio: 10:90 / 20:80 / 30:70 / 40:60 / customized
  • Input Optical Fiber Type:  0.25mm / 0.9mm / 2.0mm / 3.0mm
  • Output Channel Number: 2 / 4 / 8 / 16/ 32
  • Output Optical Fiber Type: 0.25mm/ 0.9mm / 2.0mm / 3.0mm
  • Connector Type In/Out: no connector / FC / SC / LC / or other type
  • Connector Polish Type: APC/ UPC/ PC
  • Fiber Length: customized (1.0M defaulted)

How to choose the right fiber optic splitter?

Step 1: Consider the costs, performances & applications, and environments, choose which type of fiber optic splitter you’ll need, there are generally two types of fiber optic splitters: FTB Coupler and PLC Splitter.

FTB Coupler

FBT coupler is a fiber optic splitter made by fusing and stretching two or more optical fibers together to create a tapered region that splits and distributes the input signal between output fibers. FBT couplers are commonly used in fiber optic networks, but they have some limitations such as limited bandwidth and higher insertion loss.

PLC Splitter

PLC Splitter is highly preferred over the FBT splitter due to its numerous advantages such as its flexibility in working wavelength, high stability, low-temperature loss, and reduced failure rate. In recent times, PLC splitters are compact and can be integrated into small packages, making them ideal for use in optical communication systems where space is limited. There are several types of PLC (Planar Lightwave Circuit) splitters, which differ in terms of their design and functionality.

The difference between FTB Coupler and PLC Splitter

ParametersFBT CouplerPLC Splitter
Operating Wavelength850nm, 1310nm, 1550nm1260nm -1650nm (full wavelength)
ApplicationCATV Systems, PON, FTTx Networks, etc.CATV Network Systems, PON, FTTx Networks, etc.
Performance1×8 (can be larger with a high failure rate)1×64 (equal to all branches providing high reliability)
Branches Split AttenuationEqual or unequal division, customizedEqual splitter ratios(non-customized)
Input/OutputOne or two inputs with an output maximum of 32 fibers.One or two inputs with an output maximum of 64 fibers.
Operation Temperature-5 to 75℃-40 to 85 ℃
PriceLowerHigher than FBT Coupler
SummaryUsed for simple signal splittingUsed for more complex and precise signal splitting in higher-capacity communication systems

 

Here are some of the most common PLC splitter types

Bare fiber PLC Splitter

Micro PLC Splitter

fiber optic splitter

ABS Box PLC Splitter

LGX Box PLC Splitter

Rack Mount PLC Splitter

  • Bare Fiber PLC Splitter: A bare fiber PLC splitter is a type of splitter with no connectors or adapters attached to it. The splitter can be spliced directly to the fibers in a cable to split the signal. This type of splitter is commonly used in outdoor installations and can be easily installed in a splice enclosure.
  • Micro PLC Splitter: A micro PLC splitter is a small form factor splitter that is used in tight spaces or when multiple splitters need to be installed in a small area. These splitters are typically used in fiber optic patch panels and come in various configurations such as 1×2, 1×4, 1×8, and so on.
  • ABS Box PLC Splitter: An ABS box PLC splitter is a type of splitter that is housed in a plastic box. The splitter comes with connectors or adapters attached to it, making it easy to install in a variety of applications. This type of splitter is commonly used in indoor installations, such as in data centers or telecom closets.
  • LGX Box PLC Splitter: An LGX box splitter is a type of splitter that is housed in a metal box with an LGX footprint. The splitter can be configured with various connector types and comes in various configurations such as 1×2, 1×4, 1×8, and so on. This type of splitter is commonly used in telecom applications and can be easily mounted in a rack or cabinet.
  • Rack Mount PLC Splitter: A rack mount PLC splitter is a type of splitter that is designed to be mounted in a standard 19-inch equipment rack. The splitter can be configured with various connector types and comes in various configurations such as 1×2, 1×4, 1×8, and so on. This type of splitter is commonly used in data centers and telecom installations where space is at a premium.

Specification of PLC Splitter

1xN PLC Splitter

2xN PLC Splitter

Step 2: Choose the right fiber type, The splitter should be compatible with the fiber type you are using, whether it is single-mode or multimode.

Step 3: Decide which Splitting Ratio you’ll need in your network: The splitting ratio determines how many outputs are needed per input. Common splitting ratios include 1:2, 1:4, 1:8, 1:16, 1:32, etc. Make sure to choose the appropriate splitting ratio based on your specific needs.

Step 4: Determine how many ports you require. Splitters are available in various configurations, ranging from one input and two outputs to one input and 64 outputs or more.

Step 5: Select the input and Output Connectors, the most common connector types are SC, LC, and FC.

SC connector
2.5 mm SC is mainly used for EPON, GPON, GBIC, X2, and XENPAK transceivers, telecom, and datacom.
LC connector
1.25mm LC is mainly used for matching SFP/SFP+/XFP transceivers. Higher-density connections.
FC connector
2.5 mm FC is mainly used for Telecom, datacom, single-mode lasers, and measurement equipment.

Step 6: Choose the polish type of connectors. There are two types of connector polish, UPC and APC.

No angles, with high return loss than APC polishment, are mainly used for used for TV, telephony, and data systems.
With 8 degrees angle, has better performance(lower return loss) than APC, which is mainly used for FTTH, PON, WDM systems, etc.

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