Description
Fused couplers are used to split optical signals between two fibers, or to combine optical signals from two fibers into one fiber. They are constructed by fusing and tapering two fibers together. This method provides a simple, rugged, and compact method of splitting and combining optical signals.
Typical excess losses are as low as 0.2dB, while splitting ratios are accurate to within ±5 percent at the design wavelength. The devices are bi-directional, and offer low back reflection. The technique is best suited to single mode and multimode couplers.
Fused Couplers – Fiber Optic
Specifications
| Wavelength Range: | 400 - 2005 nm |
|---|---|
| Directivity: | 50 dB |
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Features
- Low loss and cost
- Broad bandwidth
- Good uniformity
- Small package
- High directivity
- Single mode, multi mode, polarization maintaining fiber versions are available
- Wide variety of wavelengths 400-2005 nm
Frequently Asked Questions
What are fused couplers used for?
Fused couplers are used to split optical signals between two fibers, or to combine optical signals from two fibers into one fiber.
How are fused couplers constructed?
Fused couplers are constructed by fusing and tapering two fibers together.
Are fused couplers bi-directional?
Yes, fused couplers are bi-directional and offer low back reflection.
What types of fibers are fused couplers best suited for?
The technique is best suited to single mode and multimode couplers.
What are the typical excess losses for fused couplers?
Typical excess losses for fused couplers are as low as 0.2dB.
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