3×3 and 2×2 High NA Couplers
Feasa produces a range of Couplers manufactured from high Numerical Aperture (NA) 80 micron fiber. High NA fiber has low bend attenuation compared to standard singlemode fiber. It has application anywhere the fiber needs to be tightly coiled or is subject to sharp bends or twists. It is suitable for Fiber Optic Gyroscope (FOG) Couplers. For different systems many coupler types are available.
| Parameter | Specifications |
|---|---|
| Configuration | 3×3, 1×3, 2×2, 1×2 |
| Fiber Type | 80µm High NA |
| Operating Wavelength | 820nm, 1550nm, other wavelengths |
| Insertion Loss | 3.5dB at 50:50 splitting ratio |
| Excess Loss | 0.25dB |
| Coupling Ratio | 33:33:33, 50:50 |
| Operating Temperature | -55°C to +85°C |
| Package Size | Standard 45mm × 3mm diameter / Miniature 35mm × 3mm diameter |
| Fiber Pigtail Length | >800mm |