SEMICONDUCTOR LASER ELEMENT AND METHOD FOR MANUFACTURING THE SAME
A semiconductor laser element (100) includes an n-side semiconductor layer (2), an active layer (3), and a p-side semiconductor layer (4). A least a portion of the p-side semiconductor layer (4) forms a ridge (4a) projecting upward. The p-side semiconductor layer (4) includes an undoped first part (...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | A semiconductor laser element (100) includes an n-side semiconductor layer (2), an active layer (3), and a p-side semiconductor layer (4). A least a portion of the p-side semiconductor layer (4) forms a ridge (4a) projecting upward. The p-side semiconductor layer (4) includes an undoped first part (41), an electron barrier layer (42) containing a p-type impurity and having a larger band gap energy than the first part (41), and a second part (43) having at least one p-type semiconductor layer. The lower end of the ridge (4a) is positioned at the first part (41). |
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