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OK, but can you really call "one" fiber with "multiple" cores a "single" optical fiber? All the same, pretty amazing stuff. The current state of the art in sy
by angdis 15y ago
OK, but can you really call "one" fiber with "multiple" cores a "single" optical fiber?
All the same, pretty amazing stuff.
The current state of the art in systems which are starting to get deployed now is 100Gb/s per wavelength on a single optical fiber. Each fiber can carry 10's of wavelengths.
These 100G systems can use existing fiber that was run for 10G systems. They exploit more advanced modulation techniques than the old "on-off keying" used in 10G.
Backbone carriers are starting to fill up the so-called "dark fiber" that was over-supplied ~10 years ago. This is creating the demand for 100G and eventually higher.
- perlgeek 15y ago> OK, but can you really call "one" fiber with "multiple" cores a "single" optical fiber? Depends on what they actually used. There are special optical fibers with air holes (google for "photonic crystal fibers"), if they produces such fibers to guide multiple modes independently, you can really call it a single fiber. If they used separate fibers within a single plastic cladding, you can argue about that. If they used multiple fibers separate plastic claddings, they probably would have been shouted down at the conference where they presented their results :-)