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FBT vs. PLC Fiber Optic Splitters – What’s The Difference?

PLC – Planar Lightwave Circuit Splitter
Advantages:
1). Suitable for multiple operating wavelengths (1260nm – 1650nm); unstinted.
2). Equal splitter ratios for all branches.
3). Compact configuration; smaller size; small occupation space.
4). Good stability across all ratios.
5). High quality; low failure rate.

Disadvantages:
1). Complicated production process.
2). Costlier than the FBT splitter in the smaller ratios.

FBT – Fused Biconical Splitter
Advantages:
1). The product is well-known and is easy to produce, thus reducing cost of production.
2). Splitter ratios can be customized.
3). Can work on three different operating bands (850nm, 1310nm, and 1550nm).

Disadvantages:
1). Restricted to its operating wavelength.
2). Because of errors in equality insertion loss, the maximum insertion loss will vary depending on the split and increase substantially for those splits over 1:8.
3). Because an exact equal ratio cannot be ensured, transmission distance can be affected.
4). High temperature dependent loss (TDL). The operating temperature range is -5°C to 75°C ( 23 °F- 167 °F ), any changes in temperature can affect the insertion loss.
5). The larger the split, the larger the encapsulation module.
6). Susceptible to failure due to extreme temperatures or improper handling.

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