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US 4,730,326 AGranted
Semiconductor laser array device
AssigneeSharp Kabushiki Kaisha
InventorsMototaka Taneya, Sadayoshi Matsui, Mitsuhiro Matsumoto, Saburo Yamamoto, Seiki Yano
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Abstract
A semiconductor laser array device comprising a plurality of index-guided lasing filaments formed in an active layer in a parallel manner, and an electrical current injection portion formed on the upper face of grown layers therefor the flat shape of the electrical current injection portion is asymmetrical with respect to any line which is parallel to the lasing filaments.
Claims7
A semiconductor laser array comprising:
- a substrate having a plurality of grown layers thereon including an active layer, said active layer having a plurality of parallel index-guided lasing filaments formed therein;
- and
- an electrical current injection portion formed on an upper face of said grown layers, said electrical current injection portion having an asymmetrical shape with respect to any line which is parallel to the lasing filaments.
Dependencies are inferred from the claim text.