2×2 1310 & 1490 & 1550nm Three Window Singlemode FBT Coupler Splitter With Steel Tube

2×2 1310 & 1490 & 1550nm Three Window Singlemode FBT Coupler Splitter With Steel Tube

The 2×2 1310 & 1490 & 1550nm Three Window Singlemode FBT Coupler Splitter With Steel Tube is a high-performance optical splitting and combining device designed for stable operation across the three key telecommunication wavelength windows: 1310 nm (O-band), 1490 nm (E-band), and 1550 nm (C-band). Manufactured using advanced Fused Biconical Taper (FBT) technology, this 2×2 splitter ensures low insertion loss, accurate coupling ratios, excellent wavelength stability, and reliable bidirectional optical performance across all three wavelength bands.

Encased in a durable stainless-steel protective tube, the device provides exceptional mechanical durability and long-term environmental stability, making it suitable for both indoor and outdoor network installations. The precision fused-taper design ensures low polarization-dependent loss (PDL) and uniform optical characteristics across all ports, delivering highly consistent performance in multi-wavelength fiber systems.

With its 2×2 configuration, the splitter supports dual functionality as both a splitter and a combiner, offering flexible deployment options for diverse optical applications. Available in a wide range of split/coupling ratios—including 50/50, 60/40, 70/30, 80/20, and 90/10—it is widely utilized in FTTH/FTTx deployments, GPON/EPON PON networks, CATV distribution, CWDM/DWDM monitoring, multi-wavelength sensing, and optical testing systems.

Specifications

Note:

1. Above specifications are for devices without connector. Add an additional 0.2dB loss per connector.
2. Only the popular coupling ratios are listed. For more parameters, please contact [email protected].

Dimension Drawing (Unit: mm)