What Is FBT Fiber Coupler Splitter Steel Tube Singlemode 1×2, 2×2 ?
SC LC FC Fused Biconic Taper (FBT) coupler, also be called FBT splitter, based on the traditional technology, it is to bundle together two or more optical fibers, and then pull the cone machine melt stretching, and real-time monitoring the change of the ratio, spectral ratio requirements after melt stretching, one side retain a single fiber (the rest of the cut) as input, the other end is a multi-channel output. As one of the key components for GPON FTTx networks, optical splitters can be placed in the Central Office or in one of the distribution points (outdoor or indoor) because the FBT coupler are highly stable for multiport optical signal splitting with low insertion loss. FBT couplers are designed for power splitting and tapping in telecommunication equipment, CATV network, and test equipment
Mefiberoptic.com’s FBT Singlemode coupler 1X2 2X2 offer very low insertion loss, low polarization dependence and excellent environmental stability Accurate coupling ratio from 50/50 to 1/99 and fiber type 250um bare fiber, 3mm and 900um loose tube fiber are available with very tight uniformity. Singlemode standard coupler and wideband coupler components find extensive application to perform power splitting and monitoring functions in all kinds of optical communication systems.
Product Name : FBT Singlemode Fiber Coupler Splitter – Steel Tube Type
Polarization Sensitivity (dB) : 0.15~0.2
Maximum lnsertion loss (dB): 3.4~3.6
Coupling Ratio(%) : 50/50
Performance Specifications
| Single Standard Couplers | ||
| Grade | P Grade | A Grade |
| Coupling Ratio（%） | 50/50 | 50/50 |
| Excess Loss (Typical)（dB） | 0.07 | 0.1 |
| Maximum insertion loss（dB） | 3.4 | 3.5 |
| Polarization Sensitivity (dB) | 0.15 | 0.2 |
| Operating Wavelength（nm） | 1310,1480,1550 or custom wavelength | |
| Single Wideband Couplers | ||
| Grade | P Grade | A Grade |
| Coupling Ratio（%） | 50/50 | 50/50 |
| Excess Loss (Typical)（dB） | 0.07 | 0.1 |
| Maximum lnsertion loss（dB） | 3.4 | 3.6 |
| Polarization Sensitivity (dB) | 0.15 | 0.2 |
| Operating Wavelength（nm） | 1310±40,1550±40,or custom wavelength | |
| Coupling Ratio（%） | 1~50 | |
| Directivity (dB) | ≥55 | |
| Operating Temperature(℃) | -20~+80 | |
| Storage Temperature(℃) | -40~+85 | |
| Fiber Type | SMF-28 | |
| Fiber Pigtail Length（m） | 1 | |
| Port Configuration | 1×2 or 2×2 | |
| Dimensions (mm) | Package D,E,F,G | |
Coupling Ratio/insertion Loss Conversion Chart
| Coupling Ratio | Insertion Loss | |
| P Grade | A Grade | |
| 40/60 | 4.4/2.5 | 4.6/2.8 |
| 30/70 | 5.6/1.8 | 6.0/2.0 |
| 20/80 | 7.4/1.1 | 7.7/1.3 |
| 10/90 | 10.8/0.6 | 11.6/0.8 |
| 5/95 | 14.2/0.4 | 14.6/0.5 |
| 2/98 | 18.5/0.2 | 19.0/0.3 |
| 1/99 | 21.0/0.2 | 21.5/0.3 |
Key Features
Low insertion loss Low polarization dependent loss High Return Loss Optional Split Ratio 20/80, 40/60. (50/50 as default.) Compact for small application areas like in closure or splice trays Wide Operating Temperature and Wavelength Excellent Environmental & Mechanical Stability Qualified under Telcordia GR-1221 and GR-1209 High Quality Plastic ABS Box
Applications FBT Fiber Coupler Splitter Steel Tube Singlemode 1×2, 2×2
FTTX (FTTP, FTTH, FTTN, FTTC) Passive Optical Networks (PON) Local Area Networks (LAN) CATV Systems Amplifying, Monitoring System Looking for ideal
Manufacturer & supplier ? Mefiberoptic.com have a wide selection at good prices to help you get creative. All the FBT Fiber Coupler Splitter Steel Tube Singlemode 1×2, 2×2 are quality guaranteed. We are China Origin Factory of FBT Fiber Coupler Splitter Steel Tube Singlemode 1×2, 2×2. If you have any question, please feel free to contact us.
