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Fused Single Mode Wavelength Flattened (Broadband/Wideband) 1X2 & 2X2 Fiber Optic Couplers (WFC) & Optical Signal Splitters
Gould's Fused Single Mode Wavelength Flattened (Broadband/Wideband) Fiber Optic Couplers & optical signal splitters are small and insensitive to operating wavelengths, suitable for use in instrumentation, DWDM systems, trunk/loop branching, and CATV distribution. Their low optical loss and high directivity make them an excellent choice for systems with power constraints. Devices can be optimized at 670nm, 850nm, 900nm, 1010nm, 1310nm, 1550nm or custom wavelengths. Available in a variety of coupling ratios.
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Features
- Low Excess Loss
- Low Insertion Loss Over a Bandpass
- Excellent Uniformity
- Low Wavelength Dependent Loss
- Low Polarization Dependent Loss
- High Directivity
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Applications
- Instrumentation
- CATV Distribution
- DWDM Systems
- Trunk/Loop Branching
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| Specifications Based on 50/50 Coupling Ratio |
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Series 1 |
Series 2 |
| Wavelength (nm) |
see Fiber & Wavelength table below |
Insertion Loss (dB)
(applies to fiber code 32, 27) |
≤3.4 |
≤3.7 |
Uniformity (dB)
(applies to fiber code 32, 27) |
≤0.6 |
≤1.0 |
| Typical Thermal Stability (dB) |
≤±0.1 |
| Typical Polarization Stability (dB) |
≤±0.1 |
Typical Directivity
(dB) |
2x2 |
≥65 |
| 1x2 |
≥40 |
| 1x2 w/LRTTM |
≥60 (for SMF-28)
≥55 (for all other fibers) |
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| Coupling Ratio/Insertion Loss Chart |
| Fiber Type |
Corning SMF 28TM & Corning HI-1060 |
Corning HI-780 & Nufern 630-HP |
Desired Split
Ratio |
Insertion Loss (dB) |
| Series 1 |
Series 2 |
Series 1 |
Series 2 |
| 50/50 |
3.4 |
3.7 |
3.6 |
3.8 |
| 40/60 |
4.5/2.6 |
4.8/2.8 |
4.7/2.7 |
5.0/2.9 |
| 30/70 |
5.8/2.0 |
6.1/2.0 |
6.0/2.1 |
6.4/2.1 |
| 20/80 |
7.7/1.3 |
8.0/1.3 |
7.9/1.4 |
8.5/1.4 |
| 10/90 |
11.2/0.8 |
12.9/0.8 |
11.3/0.9 |
12.7/0.9 |
| 5/95 |
14.6/0.4 |
18.4/0.5 |
15.1/0.5 |
18.9/0.7 |
| 1/99 |
23.0/0.2 |
23.0/0.3 |
23.0/0.4 |
23.0/0.6 |
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| Fibers & Operating Wavelengths |
| Fiber Code |
Description |
Operating Wavelengths (nm) & Codes |
| 79 |
Nufern 630-HP |
67: 670(+/-40)
78: 780(+/-40)
81: 810(+/-40) |
| 06 |
Corning HI-780 |
81: 810 (+/-40)
85: 850 (+/-40)
90: 900 (+/-40) |
| 27 |
Corning HI-1060 |
01: 1010 (+/-40)
06: 1060 (+/-40) |
| 32 |
Corning SMF 28TM 200 kpsi |
31: 1310 (+/-40)
48: 1480 (+/-40)
55: 1550 (+/-40),etc |
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Ordering Information
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