Method and apparatus for depolarizing light
AssigneeII-VI Incorporated
InventorsIan Peter McClean, Nadhum Kadhum Zayer
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Abstract
A light source assembly (300) for emitting depolarized light, and comprising: at least one light source (312) configured to emit substantially polarized light; and a light depolarizer (318) arranged to receive light from the light source and comprising a high birefringence optical fibre having a longitudinal core and orthogonal birefringent axes having an angular displacement around the core that varies along the length of the fibre, wherein light emitted from the depolarizer comprises a plurality of polarization states.
Claims20
A light source assembly for emitting depolarized light, and comprising:
- at least one light source configured to emit substantially polarized light;
- and
- a light depolarizer arranged to receive light from the light source and comprising a high birefringence optical fibre having a longitudinal core and orthogonal birefringent axes having an angular displacement around the core that varies along the length of the fibre,
- wherein light emitted from the depolarizer comprises a plurality of polarization states.
A method for depolarizing light comprising:
- depolarizing light in a light depolarizer comprising a high birefringence optical fibre having a longitudinal core and orthogonal birefringent axes angularly displaced about the core, the angular displacement varying along the length of the fibre,
- wherein light emitted from the depolarizer comprises a plurality of polarization states.
A Raman pump unit comprising:
- at least one Raman pump source;
- and
- at least one light depolarizer arranged to receive pump light from the at least one pump source and comprising a high birefringence optical fibre having a longitudinal core and orthogonal birefringent axes having an angular displacement around the core that varies along the length of the fibre,
- wherein light emitted from the depolarizer comprises a plurality of polarization states.
Dependencies are inferred from the claim text.