| 摘要 |
An edge-emitting multi-beam semiconductor laser includes juxtaposed stripe-shaped light-emitting portions the number of which is N (wherein N>=2), wherein a separation groove that electrically separates the light-emitting portions from each other is provided between the light-emitting portions, a first recess that is partly discontinuous is provided outside a first light-emitting portion, a second recess that is partly discontinuous is provided outside an Nth light-emitting portion.
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