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- POLARIZATION MAINTAINING FUSED FIBER COUPLERS and SPLITTERS
POLARIZATION MAINTAINING FUSED FIBER COUPLERS and SPLITTERS
OVERVIEW
Fused couplers are used to split optical signals between two (or more) fibers or to combine optical signals from two (or more) fibers into one fiber. They are constructed by fusing and tapering the fibers together. This method creates a simple, rugged, compact method of splitting or combining optical signals. Typical excess losses are as low as 0.2 dB, while split ratio tolerances range from ±5% to ±0.5% at design wavelengths depending upon the splitting ratio. These devices are bidirectional and offer low backreflection and insertion losses.
SPECIFICATION
- Wavelength Range : 780 - 2005 nm
- Directivity: 55 dB
Applications
Optical amplifiers
Fiber lasers
Power monitoring
Fiber gyroscopes
Coherent communications
KEY FEATURES
Low loss and cost
Broad bandwidth
Good uniformity
Small package
High directivity
Wide variety of wavelengths 780 nm–2005 nm
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