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

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

The 2×2 1490 & 1550nm Dual Window Singlemode FBT Coupler Splitter With Steel Tube is a high-performance optical splitting and combining device engineered for reliable operation across the 1490 nm (E-band) and 1550 nm (C-band) wavelength windows. Utilizing advanced Fused Biconical Taper (FBT) technology, this coupler splitter delivers low insertion loss, accurate coupling ratios, excellent wavelength stability, and consistent bidirectional optical performance in dual-wavelength singlemode fiber systems.

Encapsulated in a robust stainless-steel protective tube, the device provides superior mechanical strength, environmental durability, and long-term operational reliability. Its precision fused-taper manufacturing process ensures low polarization-dependent loss (PDL) and stable optical characteristics, even in demanding network environments.

The 2×2 configuration supports both splitting and combining functions, enabling flexible signal management for multi-wavelength optical systems. Available in a variety of split/coupling ratios—including 50/50, 60/40, 70/30, 80/20, and 90/10—this splitter is widely used in FTTH/FTTx networks, EPON/GPON PON systems, CATV distribution, CWDM/DWDM monitoring, optical sensing, and fiber-optic testing applications.

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)