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Qingdao Applied Photonic Technologies Co.,Ltd
Add:No.47 Tokyo Road, Free Trade Zone, Qingdao, Shandong, China

Compare plc and fbt

- Jan 11, 2019 -

PLC – Planar Lightwave Circuit Splitter


·         Suitable for multiple operating wavelengths (1260nm – 1650nm); unstinted.

·         Equal splitter ratios for all branches.

·         Compact configuration; smaller size; small occupation space.

·         Good stability across all ratios.

·         High quality; low failure rate.


·         Complicated production process.

·         Costlier than the FBT splitter in the smaller 

FBT – Fused Biconical Splitter


·         The product is well-known and is easy to produce, thus reducing cost of production.

·         Splitter ratios can be customized.

·         Can work on three different operating bands (850nm, 131 Onm, and 1550nm).


·         Restricted to its operating wavelength.

·         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.

·         Because an exact equal ratio cannot be ensured, transmission distance can be affected.

·         High temperature dependent loss (TDL). The operating temperature range is 23 °F- 167 °F. Any changes in temperature can affect the insertion loss.

·         The larger the split, the larger the encapsulation module.

·         Susceptible to failure due to extreme temperatures or improper handling.

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