Triple Window Steel Tube Type 0.9mm 1M Fiber Optic FBT Coupler
FBT Coupler Description
1. Fiber Optic FBT splitter is a type of optical power management
device that is fabricated using Fused Biconical Tape technology.
2. It features small size, high reliability, cheap cost and good
channel-to-channel uniformity, and is widely used in PON networks
to realize optical signal power splitting.
3. Sunet provides whole series of 1xN and 2xN splitter products
that are tailored for specific applications. All products meet
GR-1209-CORE and GR-1221-CORE
Sunet offers both tree and star type inline couplers/splitters.
They provide a reliable solution to split/combine signals. The
splitting ratio ranges from 1x2 to 1x32 ports for tree couplers,
and from 2x2 up to 2x32 for star couplers. Available in single,
dual, and tripple wavelength windows(1310/1490/1550nm).
FBT Coupler Features
1. Low Excess loss
2. Low PDL
3. Environmentally stable
4. Good Thermal Stability
FBT Coupler Application
1. Long-haul Telecommunications
2. CATV Systems & Fiber Optic Sensors
3. Local Area Network
FBT Coupler Parameters
| Three-Window Coupler (TWC) |
Grade | P | A |
Port configuration | 1x2 or 2x2 |
Operating wavelength (nm) | 1310 ,1490 and 1550 |
Operating bandwidth (nm) | 1310±40,1490±10 and 1550±40 |
Typical excess loss (dB) | 0.07 | 0.10 |
Insertion Loss (dB) | 50/50 | ≤3.6 | ≤3.8 |
40/60 | ≤4.7/2.7 | ≤4.9/2.9 |
30/70 | ≤6.0/1.9 | ≤6.3/2.1 |
20/80 | ≤7.9/1.3 | ≤8.4/1.4 |
10/90 | 9.20~11.00/≤0.75 | 8.80~11.40/≤0.8 |
5/95 | 12.05~14.20/≤0.4 | 11.55~14.65/≤0.5 |
3/97 | 14.10~16.50/≤0.35 | 13.60~17.05/≤0.45 |
2/98 | 15.60~18.55/≤0.3 | 15.00~19.20/≤0.4 |
1/99 | 18.45~21.70/≤0.25 | 17.80~22.40/≤0.35 |
PDL (dB) | ≤0.15 | ≤0.20 |
Directivity (dB) | ≥55 |
Operating temperature (℃) | -40 ~ +85 |
Package Dimension | 250μm bare fiber: Φ3.0×45mm
900μm loose tube: Φ3.0×54mm
900um/2mm/3mm loose tube: 90×20×10mm |
