发明名称 |
Spherical planoconvex lens for optically coupling a semiconductor laser to an optical waveguide |
摘要 |
A spherical planoconvex lens for optically coupling a semiconductor laser to an optical waveguide characterized by a thickness of the lens from a planar surface to a vertex of the spherical convex lens surface being greater than the radius of the spherical convex surface but small enough that a focal point of the lens on a laser side lies outside of the lens at a small distance from the planar lens surface. The lens can be formed of either silicon or germanium and has a higher coupling efficiency than is achieved with previously known hemispherical planoconvex lenses of silicon.
|
申请公布号 |
US4830454(A) |
申请公布日期 |
1989.05.16 |
申请号 |
US19880261488 |
申请日期 |
1988.10.24 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
KARSTENSEN, HOLGER |
分类号 |
G02B3/00;G02B6/32;G02B6/42 |
主分类号 |
G02B3/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|