LS TECH
LS TECH
Wavelength Independent Couplers (Optical Couplers)
Model
Series
Optical Communication Components
Transaction Process
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Payment
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Delivery
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Shipment
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Origin
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Description
Wavelength Independent Couplers
Features
- Low insertion loss
- Low excess loss
- Low PDL
- High directivity
- Environmentally stable and reliable
Applications
- IMT 2000
- CATV
- Wide Area Network
- Local Area Network
- Telecommunication system
- FTTH
- Test instrument
Specification
(50:50 coupling ratio)
| Parameter | Unit | Grade | |
| Premium | Standard | ||
| Operating Wavelength | nm | 1310 and 1550 | |
| Wavelength Bandwidth | nm | ±40 | |
| Max. Insertion Loss | dB | 3.6 | 3.9 |
| Typical Excess Loss | dB | 0.1 | 0.3 |
| Max. Uniformity | dB | 0.8 | 1.2 |
| Max. Polarization Dependent Loss | dB | 0.15 | 0.20 |
| Min. Directivity | dB | 50 | |
| Min. Return Loss | dB | 55 | |
| Temperature Coefficient | dB/℃ | 0.002 | |
| Operating Temperature | ℃ | -40 to +85 | |
| Storage Temperature | ℃ | -50 to +85 | |
Coupling Ratio(%) / Insertion Loss(dB) Conversion Chart
| Coupling Ratio(%) | Unit | Grade | |
| Premium | Standard | ||
| 40 / 60 | dB | 4.7 / 2.7 | 5.0 / 2.9 |
| 30 / 70 | dB | 6.0 / 1.9 | 6.4 / 2.1 |
| 20 / 80 | dB | 7.9 / 1.2 | 8.5 / 1.4 |
| 10 / 90 | dB | 11.3 / 0.6 | 12.7 / 0.8 |
| 5 / 95 | dB | 15.2 / 0.4 | 18.9 / 0.5 |
| 1 / 99 | dB | 23.5 / 0.3 | 24.0 / 0.4 |
Dual Window 1×3, 1×4 Wideband Tree Couplers
Specification
| Parameter | Unit | Grade | |
| Premium | Standard | ||
| Operating Wavelength | nm | 1310 and 1550 | |
| Wavelength Bandwidth | nm | ±40 | |
| Max. Insertion Loss | dB | 5.2 | 5.5 |
| Typical Excess Loss | dB | 0.3 | 0.5 |
| Max. Uniformity | dB | 1.0 | 1.2 |
| Max. Polarization Dependent Loss | dB | 0.15 | 0.2 |
| Min. Directivity | dB | 50 | |
| Min. Return Loss | dB | 55 | |
| Temperature Coefficient | dB/℃ | 0.005 | |
| Operating Temperature | ℃ | -40 to +85 | |
| Storage Temperature | ℃ | -50 to +85 | |
Specification
| Parameter | Unit | Grade | |
| Premium | Standard | ||
| Operating Wavelength | nm | 1310 and 1550 | |
| Wavelength Bandwidth | nm | ±40 | |
| Max. Insertion Loss | dB | 7.2 | 7.6 |
| Typical Excess Loss | dB | 0.4 | 0.6 |
| Max. Uniformity | dB | 1.0 | 1.4 |
| Max. Polarization Dependent Loss | dB | 0.2 | 0.3 |
| Min. Directivity | dB | 55 | |
| Min. Return Loss | dB | 55 | |
| Temperature Coefficient | dB/℃ | 0.005 | |
| Operating Temperature | ℃ | -40 to +85 | |
| Storage Temperature | ℃ | -50 to +85 | |