 | Contents:
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Download
PDF of Broadband Single Window Couplers
Download PDF of Broadband
Dual Window Couplers
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Features
& Benefits
Fused fiber design Wide
bandwidth Low insertion loss and PDL Low excess
loss Excellent uniformity Custom assembly
capability TelcordiaTM reliability
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Applications
Monitor tap
Power splitter Telecommunications systems CATV
applications Local area networks
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Product Capabilities and
Value
At WaveSplitter, we understand the need for high-quality single- and
dual-mode couplers. Our patented WaveProcessor
Interleaver
products require fused couplers with good uniformity and low excess
loss over a very wide wavelength range. And now the same couplers that
we use in our products are also available in our WaveEssentials product
line. Our broadband couplers offer a bandwidth of 80 nm in either the
1310 and/or 1550 nm window, wide enough for just about any application.
Standard coupling ratios from 1:99 to 50:50 are also available in
either a 1x2 or 2x2 design. In addition, WaveSplitter can package the
couplers in standard LGX boxes or other custom packaging designs.
Finally, to meet the growing market needs, we've designed our
manufacturing capacity to allow high volume production while
maintaining good performance and repeatability. This translates into
quick delivery at a good value, whether you need 100 or 10,000 units.
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Figure 1: Specifications of Broadband Single Window
Couplers
Specifications (50:50 coupling ratio)
| Parameters |
Premium | A grade | B grade |
| Operating
Wavelength (nm) | 1310 or 1550 | | Insertion Loss (dB) | < 3.4 | < 3.7 | < 4.6 |
| Typical Excess
Loss (dB) | 0.1 |
0.3 | 0.5 | | Uniformity (dB) | < 0.6 | < 1.0 | < 1.5 |
| Polarization
Dependent Loss (dB) | < 0.10 | < 0.15 | < 0.20 |
| Directivity (dB) |
-50 |
| Thermal Stability
(dB) | <
0.25 | | Operating
Temperature (°C) | -40 to 85 | | Storage Temperature (°C) | -50 to 85 |
| Package
Dimensions (D x L) (mm) | S: 3.0 x 54 L: 3.0 x 62 |
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Figure 2: Specifications of Broadband Dual Window
Couplers
Specifications (50:50 coupling ratio)
| Parameters |
Premium | A grade | B grade |
| Operating
Wavelength (nm) | 1310 and 1550 | | Insertion Loss (dB) | < 3.6 | < 3.9 | < 4.8 |
| Typical Excess
Loss (dB) | 0.1 |
0.3 | 0.5 | | Uniformity (dB) | < 0.8 | < 1.2 | < 2.0 |
| Polarization
Dependent Loss (dB) | < 0.15 | < 0.20 | < 0.25 |
| Directivity (dB) |
-50 |
| Thermal Stability
(dB) | <
0.25 | | Operating
Temperature (°C) | -40 to 85 | | Storage Temperature (°C) | -50 to 85 |
| Package
Dimensions (D x L) (mm) | S: 3.0 x 54 L: 3.0 x 62 |
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Figure 3: Coupling Ratio/Insertion Loss
Conversion Chart (Single Window)
Coupling
Ratio/Insertion Loss Conversion Chart
| Coupling Ratio |
Premium | A grade | B grade |
| 50/50 | 3.4 | 3.7 | 4.3 | | 40/60 | 4.4/2.5 | 4.8/2.8 | 5.3/3.1 |
| 30/70 | 5.6/1.8 | 6.1/2.0 | 6.8/2.3 |
| 20/80 | 7.4/1.1 | 8.0/1.3 | 8.7/1.5 |
| 10/90 | 10.8/0.6 | 12.0/0.8 | 13.3/1.0 |
| 5/95 | 14.6/0.4 | 18.4/0.5 | 20.0/0.8 |
| 1/99 | 21.5/0.2 | 22.0/0.3 | 23.0/0.6 |
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Figure 4: Coupling Ratio/PDL
Conversion Chart (Single Window)
Coupling
Ratio/PDL Conversion Chart
| Coupling Ratio |
Premium | A grade | B grade |
| 40-50% | 0.10 | 0.15 | 0.20 | | 30-39% | 0.15 | 0.15 | 0.15 | | 10-29% | 0.25 | 0.25 | 0.25 | | 1-9% | 0.30 | 0.30 | 0.35 |
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Figure 5: Coupling
Ratio/Insertion Loss Conversion Chart (Dual Window)
Coupling Ratio / Insertion Loss Conversion
Chart
| Coupling Ratio |
Premium | A grade | B grade |
| 50/50 | 3.6 | 3.9 | 4.8 | | 45/55 | 3.9/3.3 | 4.3/3.3 | - | | 40/60 | 4.7/2.7 | 5.0/2.9 | 5.8/3.6 |
| 35/65 | 5.0/2.2 | 5.4/2.5 | - | | 30/70 | 6.0/1.9 | 6.4/2.1 | 7.4/2.7 |
| 25/75 | 6.5/1.6 | 7.0/1.8 | - | | 20/80 | 7.9/1.2 | 8.5/1.4 | 9.8/2.0 |
| 15/85 | 8.8/1.0 | 9.4/1.2 | - | | 10/90 | 11.3/0.6 | 12.7/0.8 | 15.8/1.0 |
| 5/95 | 15.2/0.4 | 18.9/0.5 | 20.9/0.9 |
| 1/99 | 23.5/0.3 | 24.0/0.4 | 24.3/0.6 |
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Figure 6: Coupling Ratio/PDL Conversion Chart (Dual
Window)
Coupling Ratio / PDL Conversion Chart
| Coupling Ratio |
Premium | A grade | B grade |
| 40 - 50% | 0.15 | 0.20 | 0.25 | | 30 - 39% | 0.20 | 0.20 | 0.20 | | 10 - 29% | 0.30 | 0.30 | 0.30 | | 1 - 9% | 0.35 | 0.35 | 0.40 |
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Figure 7: Thermal Stability
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Figure
8: Performance Graphs - Wavelength Dependent Loss 50:50 Coupling Ratio
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