发明名称 |
Distributed phase shift semiconductor laser. |
摘要 |
<p>A laser (10) using a distributed phase shift structure is disclosed. The active medium (12) is formed in the shape of a stripe having first and second surfaces and two ends. The stripe includes a large central portion and two end portions with the central portion being of different widths than the two end portions. A laser device which utilizes the active medium of the present invention further includes at least one P-guide layer (32) and at least one N-guide layer (30), both having a higher bandgap energy than the active medium. The P-guide layer and the N-guide layer are located on opposing surfaces of the active medium. A current which is injected through the N-guide layer, the P-guide layer and the active medium induces single mode, narrow linewidth coherent light to issue from the active medium. <IMAGE></p> |
申请公布号 |
EP0546743(A1) |
申请公布日期 |
1993.06.16 |
申请号 |
EP19920310903 |
申请日期 |
1992.11.30 |
申请人 |
WISCONSIN ALUMNI RESEARCH FOUNDATION |
发明人 |
CHEN, GONG;CERRINA, FRANCO |
分类号 |
H01S5/00;H01S5/10;H01S5/12 |
主分类号 |
H01S5/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|