Vertical-cavity surface-emitting laser that provides polarization mode control
AssigneeLumentum Operations LLC
InventorsChien-Yao LU, Mike TAN, Albert YUEN
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Abstract
In some implementations, a vertical-cavity surface-emitting laser (VCSEL) includes a confinement layer and a polarization mode filter. The confinement layer defines a confinement aperture. The confinement aperture is asymmetrical with respect to at least one axis of the confinement aperture. The polarization mode filter includes a grating. The confinement aperture and the polarization mode filter are configured to control a quantity of optical modes supported by the VCSEL and to lock a polarization of each optical mode supported by the VCSEL.
Claims20
A vertical-cavity surface-emitting laser (VCSEL), comprising:
- a confinement layer;
- and
- a polarization mode filter, wherein:
- the confinement layer defines a confinement aperture,
- the confinement aperture is asymmetrical with respect to at least one axis of the confinement aperture, and
- the polarization mode filter includes a grating, and
- the confinement aperture and the polarization mode filter are configured to control a quantity of optical modes supported by the VCSEL and to lock a polarization of each optical mode supported by the VCSEL.
An optical assembly, comprising:
- one or more vertical cavity surface emitting lasers (VCSELs), wherein each VCSEL comprises:
- a confinement layer;
- and
- a polarization mode filter, wherein:
- the confinement layer defines a confinement aperture, and
- the confinement aperture and the polarization mode filter are configured to control a quantity of optical modes supported by the VCSEL and to lock a polarization of each optical mode supported by the VCSEL.
A wafer, comprising:
- a plurality of vertical cavity surfacing emitting lasers (VCSELs), wherein each VCSEL comprises:
- a confinement layer that defines a confinement aperture;
- and
- a polarization mode filter, wherein:
- the confinement aperture and the polarization mode filter are configured to control a quantity of optical modes supported by the VCSEL and to lock a polarization of each optical mode supported by the VCSEL.
Dependencies are inferred from the claim text.