| Model | TW13/14/15nm-1×2-0.9mm-L1 | ||||
|---|---|---|---|---|---|
| Wavelength | 1310/1490/1550nm | ||||
| Bandwidth | ±40 | ||||
| Specifications | Required ratio % | I L (dB) | PDL (dB) | ||
| 1310nm / 1490nm / 1550nm | OUT1 (Blue): 25% ≤6.35 dB OUT2 (Orange): 75% ≤1.35 dB |
OUT1: 0.01 OUT2: 0.02 |
|||
| QTY | 2 NOS | ||||
| Date | Dec, 2017 | ||||
FOBER FBT Coupler 75/25 Steel Tube Type (Pack of 2) – Precision Optical Splitting for Advanced Fiber Networks
The FOBER FBT Coupler 75/25 Steel Tube Type is a highly reliable passive fiber optic component designed for efficient optical signal distribution in single-mode fiber networks. With a 75/25 split ratio, it transmits 75% of the input optical power to one output and the remaining 25% to the second. This configuration is ideal for applications where a dominant signal path is required alongside a lower-power signal for monitoring, backup, or secondary connections.
Built with Fused Biconical Taper (FBT) technology and enclosed in a steel tube housing, this coupler ensures superior durability, performance, and resistance to environmental conditions. Whether used in FTTH, PON, CATV, or test environments, it delivers consistent signal quality with minimal loss.
This product comes in a pack of 2 couplers, offering exceptional value and convenience for telecom engineers, fiber network installers, and system integrators.
Key Features
75/25 Splitting Ratio
Distributes 75% of the optical power to the main output and 25% to a secondary output – ideal for asymmetric signal distribution and monitoring applications.
Fused Biconical Taper (FBT) Technology
Traditional yet reliable technology that enables low-cost, high-performance optical signal splitting with high precision and stability.
Rugged Steel Tube Housing
Encased in a corrosion-resistant steel tube for added protection, especially useful in outdoor or high-humidity environments.
Single-Mode Fiber Compatibility
Optimized for single-mode fiber networks, ensuring long-distance transmission with reduced attenuation.
Compact Design for Easy Installation
Small form factor allows easy integration into fiber distribution boxes, ODFs, or splice trays.
Technical Specifications
| Parameter | Specification |
|---|---|
| Splitting Ratio | 75% / 25% |
| Fiber Type | Single Mode (G.652D / G.657A) |
| Operating Wavelength | 1260–1650 nm |
| Insertion Loss (Typical) | ≤ 0.4 dB (75%) / ≤ 6.0 dB (25%) |
| Return Loss | ≥ 50 dB |
| Directivity | ≥ 55 dB |
| Excess Loss | ≤ 0.2 dB |
| Packaging Type | Steel Tube |
| Connector Type (Optional) | SC/APC, SC/UPC, LC/APC, LC/UPC |
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -40°C to +85°C |
Applications
The FOBER FBT Coupler 75/25 is versatile and suitable for many fiber optic applications, including:
FTTH (Fiber to the Home)
CATV Networks
Passive Optical Networks (PON)
Data Centers
Fiber Network Monitoring and Testing
Telecommunications and Backbone Networks
Whether you need to tap into a live signal for performance monitoring or distribute optical signals asymmetrically, this coupler offers the perfect solution.
Advantages
✅ Asymmetric Splitting for Custom Networks – Supports advanced routing and monitoring without disrupting the primary path.
✅ Durable Steel Tube Housing – Protects fiber from environmental stress, mechanical damage, and handling.
✅ Reliable FBT Construction – Proven technology for stable long-term performance at an economical price.
✅ Wide Wavelength Range – Compatible with a range of transmission wavelengths used in modern optical networks.
✅ Pack of 2 Units – Offers better value and ensures redundancy or expanded deployment capabilities.
Why Choose FOBER 75/25 FBT Coupler?
The FOBER 75/25 Steel Tube Type FBT Coupler is specifically designed for users who need more control over signal distribution. The 75% primary signal path maintains strength and quality for your main service lines, while the 25% output is perfect for secondary distribution, such as signal analysis or passive monitoring.
Its rugged steel casing ensures consistent performance even in harsh environments, making it suitable for both field and indoor use. Additionally, its compact size allows seamless integration into your existing infrastructure without requiring extensive modifications.
FOBER products undergo stringent quality checks to ensure they meet global optical communication standards, so you can rely on performance and longevity.
Conclusion
The FOBER FBT Coupler 75/25 Steel Tube Type (Pack of 2) delivers a practical and high-performance solution for fiber optic signal splitting. With superior construction, high accuracy, and a reliable split ratio, this coupler supports a wide range of network topologies and applications.
Whether you’re setting up a new FTTH line, extending a CATV network, or adding monitoring points to your backbone, this coupler will help you achieve high-efficiency and long-lasting results. Trusted by professionals across industries, it combines precision, durability, and value—making it an essential component in modern fiber optic systems.
