| Overview |
SMI’s single mode dual window coupler can be operated at both 1310nm and 1550nm wavelength level. SMI applies advanced FBT technology which induces no additional water peak attenuation at 1383nm which displayed by traditional FBT technology; this advantage lead SMI’s coupler available across the Extended Band (1360nm~1460nm) and insensitive to the operating wavelength from 1270nm to 1600nm. |
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| Features |
- Low Insertion Loss
- Low PDL
- High Directivity
- Bidirectional
- Environmentally Stable
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| Applications |
- Telecommunicatio
- CATV
- FTTH
- Local Area Network
- Fiber Optic Test Equipment and Sensing
- Wide Area Network
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Specifications
| Parameter |
Premium |
Standard |
| Operating Wavelength |
1310 and 1550nm |
| Bandwidth |
± 40nm |
| Port Configuration |
1´2 or 2´2 |
| Max. Insertion Loss*, dB |
3.5 |
3.8 |
| Uniformity（50/50）, dB |
≤0.6 |
≤1.0 |
| Polarization Dependent Loss*, dB |
≤0.10 |
≤£0.2 |
| Directivity, dB |
≥55(1´2), ≥60(2´2) |
| Reflectance, dB |
≥55 |
| Thermal Stability, dB |
≤0.25 |
| Operating Temperature |
-40°C to +85°C |
| Storage Temperature** |
-40°C to +85°C |
| Package Dimensions（mm） |
Coated fiber (250mm): 3.0(OD) x 53(L)
Loose tube (900mm): 3.0(OD) x 60(L)
Ruggedized (3.0mm): 100(L) x 12(W) x 10(H) |
*Without connectors |
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Coupling Ratio / Insertion Loss
Coupling Ratio |
Premium |
Standard |
50/50 |
3.5 |
3.8 |
40/60 |
4.6/2.6 |
5.0/2.9 |
30/70 |
5.9/1.8 |
6.3/2.1 |
20/80 |
7.7/1.2 |
8.4/1.4 |
10/90 |
10.8/0.6 |
12.5/0.8 |
5/95 |
14.8/0.4 |
18.5/0.5 |
1/99 |
21.8/0.25 |
23.5/0.4 |
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Coupling Ratio / PDL
Coupling Ratio |
Premium |
Standard |
50/50 |
0.1/0.1 |
0.2/0.2 |
40/60 |
0.1/0.1 |
0.2/0.2 |
30/70 |
0.2/0.1 |
0.3/0.2 |
20/80 |
0.2/0.1 |
0.3/0.2 |
10/90 |
0.25/0.1 |
0.3/0.2 |
5/95 |
0.25/0.1 |
0.3/0.2 |
1/99 |
0.25/0.1 |
0.3/0.2 |
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| Spectrum for 20/801x2 WIC |
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