Free Space Fibre-To-Fibre Coupling Using Optical Fibres Below Cut-Off
A method of free space fibre-to-fibre coupling includes providing a first optical fibre and a second optical fibre spaced apart from one another by a free space distance having a pair of spaced-apart achromatic collimating lenses within the free space distance. Essentially single mode light is launc...
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Zusammenfassung: | A method of free space fibre-to-fibre coupling includes providing a first optical fibre and a second optical fibre spaced apart from one another by a free space distance having a pair of spaced-apart achromatic collimating lenses within the free space distance. Essentially single mode light is launched from the first fibre at a wavelength λ or a range of λs that provides at least a portion of its light at wavelength(s) below a cut-off wavelength for the first fibre. The first optical fibre and second optical fibre are both |
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