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US 2015/0029512 A1Published application
Surface emitting laser and optical apparatus
AssigneeCanon Kabushiki Kaisha
InventorsTatsuro Uchida, Mamoru Uchida
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Abstract
A surface emitting laser comprises an upper reflecting mirror, a lower reflecting mirror, and an active layer located between those mirrors. A cavity of the surface emitting laser consists of the upper reflecting mirror and the lower reflecting mirror. In the surface emitting laser, a plurality of individual light receiving portions is located in an optical path inside the cavity in order to detect a laser beam.
Claims19
A laser comprising:
- an upper reflecting mirror;
- a lower reflecting mirror;
- and
- an active layer located between those mirrors,
- wherein a plurality of individual light receiving portions is located in an optical path inside a cavity consisting of the upper reflecting mirror and the lower reflecting mirror in order to detect a laser beam.
2 more elements
Dependencies are inferred from the claim text.