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Why couldn't these fibres work with EDFAs? As long as the fibres are designed to operate in the C-band (~1.55 micron wavelength), there shouldn't be a problem r
by alokv28 14y ago
Why couldn't these fibres work with EDFAs? As long as the fibres are designed to operate in the C-band (~1.55 micron wavelength), there shouldn't be a problem running them through an amplifier.
- aortega 14y agoNo physicist here but I think there may be losses in the interface air/glass. Also, air contains water and other elements that may present too much attenuation at 1550 nm. I suspect the different lambda is one of the reasons of the limited bandwidth of the hollow fiber. I should try to RTFA.
- timthorn 14y agoIt's overcoming the losses in the interfacing that's the innovation here - holey fibres have been around for a while. Note that it's the same research lab doing this work as invented the EDFA in the first place.