Description
Dual Window Single Mode Coupler

Dual Window Single Mode Coupler
| Parameters | Unit | Grade P | Grade A | |
| Operating Wavelength | nm | 1310/1550 or others | ||
| Operating bandwidth | nm | ±40 | ||
| Typical Excess Loss | dB | 0.07 | 0.10 | |
| Insertion loss (dB) | 50/50 | dB | ≤3.6 | ≤3.8 | 40/60 | dB | ≤4.7/2.7 | ≤4.9/2.9 |
| 30/70 | dB | ≤6.0/1.9 | ≤6.3/2.1 | |
| 20/80 | dB | ≤7.9/1.3 | ≤8.4/1.4 | |
| 10/90 | dB | ≤11.2/0.75 | ≤12.0/0.8 | |
| 5/95 | dB | ≤14.6/0.4 | ≤15.5/0.5 | |
| 2/98 | dB | ≤18.8/0.3 | ≤19.5/0.4 | |
| 1/99 | dB | ≤22.5/0.25 | ≤23.5/0.35 | |
| PDL (dB) | dB | ≤0.15 | ≤0.20 | |
| Return Loss | dB | ≥50 | ||
| Directivity | dB | ≥50 | ||
| Power Handling | W | ≤4 | ||
| Operating Temperature | ℃ | -20 ~ +70 | ||
| Storage Temperature | ℃ | -40 ~ +85 | ||
| Configuration | 1x2, 2x2 | ||
| Fiber length | 1m, others on request | ||
| Fiber Type | SMF-28e | ||
| Pigtail type | 250μm Bare Fiber | 900μm Loose Tube | 2mm/3mm Loose Tube |
| Dimensions (mm) | φ3.0x40; φ3.0x54 | φ3.0x54; 90x16x9 | 90x16x9 |

| Type | D=Dual window coupler; |
| Grade | P=Grade P; A=Grade A; |
| Port Type | 1x2; 2x2; |
| Wavelength | 1310/1550; |
| Coupling Ratio | 1/99; 2/98; 3/97; ……; 50/50; |
| Pigtail Type | 250=250µm Fiber; 900=900µm Loose Tube; 2mm=2mm loose tube; 3mm=3mm Loose Tube; |
| Fiber Type | 1=SMF-28e; |
| Length | 1= 1m; X=Other; |
| Connector | NE=None; FA=FC/APC; FC=FC/UPC; SA=SC/APC; SC=SC/UPC; LC=LC/UPC; XX=Others; |
| Package | 3x40; 3x54; 90x16x9; |