发明名称 |
Semiconductor laser element |
摘要 |
A semiconductor laser element including a ridge extending along a laser output direction of the laser element. The ridge has a central portion, two peripheral portions sandwiching the central portion, and two transitional portions. Window regions that are non-gain regions are located in corresponding peripheral portions. A difference in an equivalent refractive index between the central portion of the ridge and the peripheral portions on both sides is larger than a difference in an equivalent refractive index between the central portion of the ridge and transitional portions on both sides of the central portion in a gain region.
|
申请公布号 |
US7561608(B2) |
申请公布日期 |
2009.07.14 |
申请号 |
US20060515825 |
申请日期 |
2006.09.06 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
TAKASE TADASHI |
分类号 |
H01S5/00;H01S5/30;H01S3/04;H01S5/16;H01S5/22;H01S5/34 |
主分类号 |
H01S5/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|