1*2 Dual window 1310/1550nm fiber optical splitter FBT fused coupler
Features
Low Excess Loss
Various Coupling Ratio
Compact Size
Applications
Long-haul Telecommunications
CATV Systems & Fiberoptic Sensors
Local Area Network
Performance Specifications
Parameter | Unit | Value | ||||||
Type | Dual-Window Coupler(DWC) | Three-Window Coupler(TWC) | ||||||
Grade | P | A | P | A | ||||
Operating wavelength | nm | 1310 and 1550 | 1310,1490 and 1550 | |||||
Operating bandwidth | nm | 1310/1550±40 | 1310/1550±40 and 1490±10 | |||||
Insertion loss | 50/50 | dB | ≤3.6 | ≤3.8 | ≤3.6 | ≤3.8 | ||
Polarization Dependent Loss | dB | ≤0.15 | ≤0.2 | ≤0.15 | ≤0.2 | |||
Temperature Dependent Loss | dB | ≤0.2 | ||||||
Directivity | dB | ≥55 | ||||||
Return Loss | dB | ≥55 | ||||||
Operating Temperature | °C | -40~+85 | ||||||
Storage Temperature | °C | -40~+85 |
parameter & Grade | P Grade | A Grade | ||
Optic Wavelength(nm) | 1310,1550 or Customized | |||
Operating Bandwidth(nm) | ±20 | |||
Excess Loss(dB) | ≤0.1 | ≤0.15 | ||
Insertion Loss | 50/50 | ≤3.4 | ≤3.6 | |
40/60 | ≤4.4/2.6 | ≤4.6/2.8 | ||
20/80 | ≤7.5/1.2 | ≤7.7/1.3 | ||
10/90 | ≤10.8/0.6 | ≤11.5/0.8 | ||
PDL(dB) | ≤0.10 | ≤0.15 | ||
Directivity(dB) | ≥55 | |||
Operating Temperature () | -40+80 | |||
Pigtail Length | Customized |





