A circular beam spot and low threshold current laser diode withreverse-v-shape layer |
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| Authors: | Takeshita T. Shibata Y. Ito T. Sakai Y. Okamoto M. Tohmori Y. |
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| Affiliation: | NTT Photonics Labs., Kanagawa; |
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| Abstract: | A laser with a reverse-V-shape layer exhibits a circular beam spot and low threshold current. The beam aspect ratio of the reverse-V-shape laser is clarified to be insensitive to reverse-V-shape width. The reverse-V-shape layer consists of a strained active layer and a passive guide layer, which leads to a low threshold current. The reverse-V-shape laser is attractive as an optical source for optical-communication and information systems |
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