Dual window coupler is also know as Single Mode Double Window Coupler（DWC）, which is built to split the optical power or wavelength through Fused Biconic Taper (FBT) technique. 1x2 or 2x2 Dual Window Coupler has two operating wavelength, 1310nm and 1550nm.
Low insertion loss High channel isolation
Excellent environmental reliability Low PDL
CATV Links FTTX Systems
PON Networks Optical Signal Distribution
| Grade | P | A | P | A | |
|---|---|---|---|---|---|
| Port Configuration | 1x2 or 2x2 | ||||
| Operating Wavelength(nm) | 1310 and 1550 | ||||
| Operating Bandwidth(nm) | ±40 | ±80 | |||
| Typical Excess Loss(dB) | 0.07 | 0.1 | 0.07 | 0.1 | |
| Insertion Loss(dB) | 50/50 | ≤3.6 | ≤3.8 | ≤3.8 | ≤4.0 |
| 40/60 | ≤4.7/2.7 | ≤4.9/2.9 | ≤5.0/2.8 | ≤5.2/3.0 | |
| 30/70 | ≤6.0/1.9 | ≤6.3/2.1 | ≤6.4/2.3 | ≤6.7/2.2 | |
| 20/80 | ≤7.9/1.3 | ≤8.4/1.4 | ≤8.3/1.3 | ≤8.7/1.5 | |
| 10/90 | 9.2~11.2/≤0.75 | 8.8~11.4/≤0.8 | 9.15~11.05/≤0.75 | 8.75~11.45/≤0.8 | |
| 5/95 | 12.05~14.15/≤0.4 | 11.6~14.6/≤0.5 | 12.0~14.25/≤0.45 | 11.5~14.7/≤0.5 | |
| 2/98 | 15.75~18.45/≤0.3 | 15.15~19.0/≤0.4 | 15.6~18.6/≤0.3 | 14.95~19.2/≤0.4 | |
| 1/99 | 18.6~21.6/≤0.25 | 17.95~22.25/≤0.35 | 18.35~21.85/≤0.25 | 17.6~22.55/≤0.35 | |
| PDL (dB) | 0.15 | 0.2 | 0.15 | 0.2 | |
| Directivity (dB) | ≥55 | ||||
| Operating Temperature (℃) | -40 ~ +85 | ||||
| Package Dimension | 250μm Bare Fiber: Φ3.0×45mm | ||||
