A fiber optic coupler is a critical device in optical fiber systems, designed with one or more input fibers and one or several output fibers. For fused optical splitters, the signal can be divided into various ratios. For example, a 50/50 split ensures even distribution, while an 80/20 split directs 80% of the signal to one side and 20% to the other.
Optical splitters are essential components in Passive Optic Networks (PON). The FTB Fused fiber splitter supports both Single Mode (1310/1550nm) and Multimode (850nm) applications. We offer single, dual, and three-window configurations to meet diverse requirements.
| Parameter | Specification |
|---|---|
| Channel Number | 1×2, 2x2 |
| Operation Wavelength (nm) | 1310, 1550, 1310/1550, 1310/1550/1490 |
| Operation Bandwidth (nm) | ±40 |
| PDL (dB) | ≤ 0.2 |
| Directivity (dB) | ≥ 50 |
| Return Loss (dB) | ≥ 55 (UPC), ≥ 60 (APC) |
| Operating Temperature | -25°C ~ +70°C |
| Storage Temperature | -25°C ~ +75°C |
| Coupling Ratio | Insertion Loss (dB) | Coupling Ratio | Insertion Loss (dB) |
|---|---|---|---|
| 50/50 | ≤3.6/3.6 | 10/90 | ≤11.3/0.9 |
| 40/60 | ≤4.8/2.8 | 15/85 | ≤9.6/1.2 |
| 30/70 | ≤6.1/2.1 | 25/75 | ≤7.2/1.6 |
| 20/80 | ≤8.0/1.3 | 5/95 | ≤14.5/0.4 |
Available split counts include 1x2 and 2x2 with a wide variety of ratios: 50/50, 40/60, 30/70, 20/80, 10/90, 5/95, 1/99, and more. These couplers are available with 0.9mm loose tube, 2.0mm, 3.0mm cable diameters, or 250um bare fiber.
Connector options include LC/UPC, LC/APC, SC/UPC, SC/APC, FC/UPC, FC/APC, and ST/UPC. Unconnectorized versions are also available for easy splicing. All products are designed for high reliability and meet GR-1209-CORE and GR-1221-CORE standards.