Specifications
| Required Ratio % | IL(dB) | PDL(dB) | |
|---|---|---|---|
| 1310nm | OUT1 (Blue) 20 | ≤7.45 | 0.03 |
| 1490nm | OUT2 (Orange) 80 | ≤1.07 | 0.01 |
| 1550nm | OUT1 (Blue) 20 | ≤7.45 | 0.03 |
| 1310/1490/1550nm | OUT2 (Orange) 80 | ≤1.07 | 0.01 |
FOBER FBT Coupler (80/20 Steel Tube Type) – Pack of 2
Reliable Optical Signal Splitting for Efficient Network Distribution
The FOBER FBT Coupler (80/20 Steel Tube Type) is a high-quality passive optical component designed for splitting or combining light signals in fiber optic communication systems. With an 80/20 split ratio, this coupler transmits 80% of the signal to one output port and the remaining 20% to another, making it ideal for applications that require signal monitoring, distribution, or light tapping for network diagnostics.
Built using Fused Biconical Taper (FBT) technology, this coupler ensures high accuracy, low insertion loss, and consistent performance. Its steel tube design not only enhances mechanical protection but also ensures the longevity and reliability of the product in diverse installation environments.
Key Features
80/20 Split Ratio:
Distributes optical signals in an 80% to 20% ratio, enabling primary data transmission with minimal tapping for monitoring or secondary use.
FBT Technology:
Crafted using Fused Biconical Taper technology for reliable performance and precise splitting.
Steel Tube Enclosure:
Robust construction protects the fiber core and minimizes environmental damage or mechanical stress during installation.
Single Mode Compatibility:
Designed for use with single-mode fiber, supporting long-distance and high-speed transmission.
High Reliability:
Offers excellent uniformity, low polarization sensitivity, and low excess loss for stable, uninterrupted network performance.
Technical Specifications
| Parameter | Value |
|---|---|
| Split Ratio | 80/20 |
| Fiber Type | Single Mode (SMF-28 or equivalent) |
| Operating Wavelength | 1310 nm / 1550 nm or customized range |
| Insertion Loss (80%) | ≤ 1.0 dB |
| Insertion Loss (20%) | ≤ 7.0 dB |
| Return Loss | ≥ 55 dB |
| Excess Loss | ≤ 0.3 dB |
| Directivity | ≥ 55 dB |
| Uniformity | ≤ 0.8 dB |
| Package Style | Steel Tube |
| Connector Type | None (Bare Fiber) |
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -40°C to +85°C |
Applications
The FOBER 80/20 FBT Coupler is widely used in:
Fiber to the Home (FTTH) networks
Passive Optical Networks (PON)
Cable TV and broadband infrastructure
Optical signal monitoring and testing
Telecommunication backbone networks
Local Area Networks (LAN)
It is particularly beneficial for signal tapping or monitoring applications where a small portion of the optical signal is required for performance checks without disrupting the main line.
Benefits
✅ Precision Splitting:
Achieves exact 80/20 ratio for balanced power distribution and signal management.
✅ Connector-Free Design:
Bare fiber output allows direct fusion splicing for seamless integration into any custom setup.
✅ Compact & Durable:
The slim steel tube casing protects internal components while minimizing space usage in enclosures or trays.
✅ Highly Compatible:
Works flawlessly with most single-mode systems, supporting both 1310nm and 1550nm wavelengths.
✅ Cost-Efficient Monitoring:
An affordable solution for tapping live fiber links for analysis or diagnostics without interrupting service.
Why Choose FOBER 80/20 Steel Tube FBT Coupler?
FOBER is a trusted brand in fiber optic technology, known for producing dependable and high-performance passive components. This 80/20 FBT Coupler reflects the brand’s commitment to quality, offering reliable performance and long operational life.
Its precision-crafted fused fiber technology ensures accurate signal splitting and consistent performance even in high-demand networks. The rugged steel tube design enhances durability, making it ideal for both indoor and outdoor installations.
Whether you’re deploying in a central office, telecom cabinet, data center, or field-based optical distribution point, the FOBER 80/20 FBT Coupler ensures optimized signal management and monitoring capabilities.
Conclusion
The FOBER FBT Coupler (80/20 Steel Tube Type) is a premium-quality, passive optical device ideal for environments where reliable light signal distribution is essential. Offering an excellent balance between signal performance, flexibility, and physical protection, it is a smart choice for engineers and technicians designing or expanding modern fiber optic networks.
Sold in a pack of 2, it offers not just performance but also value, delivering long-lasting reliability and high precision in a compact form factor. Trust FOBER for professional-grade fiber optic solutions tailored to the evolving needs of global communication networks.
