Optical fibre reflector
AssigneeOTC Australia
InventorPeter S. Atherton
Life of this patent
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Abstract
An all-fibre mirror for use in fibre cavities and resinators for an all-fibre laser. The all-fibre mirror has a polarization selective fused taper optical fibre coupler including two pairs of optical fibres joined by a coupling region, with the fibres extending from one end of the coupling region being joined together so as to form a fibre loop. A polarization selection device interacts with the fibre loop to alter the polarization of the light passing through the loop.
Claims12
An all-fibre mirror including:
- a polarisation selective fused taper optical fibre coupler portion consisting of two pairs of optical fibres joined by a coupling region with the fibres extending from one end of the coupling region being joined together so as to form a fibre loop;
- and
- a polarisation rotation device operatively associated with said fibre loop to alter the polarisation of the light passing through the loop.
In combination, a pair of fibre cavities, and first, second and third all-fibre mirrors, each all-fibre mirror including:
- a polarisation selective fused taper optical fibre coupler portion consisting of two pairs of optical fibres joined by a coupling region with the fibres extending from one end of the coupling region being joined together so as to form a fibre loop;
- and
- a polarisation rotation device operatively associated with said fibre loop to alter the polarisation of the light passing through the loop;
- and wherein
- coupling first ends of the cavities are joined to first fibres of the first mirror, which first fibres do not form part of the loop of said first mirror, and the second and third fibre mirrors are each joined to a respective other end of the cavity by one of their fibres not forming their respective loop.
An all-fibre resinator for an all-fibre laser, the resinator comprising a fibre cavity terminating at each end with an all-fibre mirror including:
- a polarisation selective fused taper optical fibre coupler portion consisting of two pairs of optical fibres joined by a coupling region with the fibres extending from one end of the coupling region being joined together so as to form a fibre loop;
- and
- a polarisation rotation device operatively associated with said fibre loop to alter the polarisation of the light passing through the loop;
- and wherein
- each fibre mirror being coupled to the cavity by one of its fibres which does not form its respective loop.
Dependencies are inferred from the claim text.