发明名称 |
Fiber taper particularly useful for coupling a monomode fiber to a semiconductor laser |
摘要 |
A fiber taper in the form of a fiber with a conically tapering at one end and having a step-shaped refractive index profile which is particularly used for coupling a single-mode fiber to a semiconductor laser. The fiber will have a core with a high index of refraction surrounded by an intermediate core layer with an index of refraction being lower by a defined index of refraction difference than the index of refraction of the core. The intermediate core layer is surrounded by a jacket or cladding layer of a lower refractive index which is lower than the refractive index of the core layer by a defined refractive index difference. An expanding beam is established given such a taper and an adiabatic mode matching from one to the other core can be achieved along the taper.
|
申请公布号 |
US4795228(A) |
申请公布日期 |
1989.01.03 |
申请号 |
US19860934338 |
申请日期 |
1986.11.24 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
SCHNEIDER, HARTMUT |
分类号 |
G02B6/42;(IPC1-7):G02B6/32 |
主分类号 |
G02B6/42 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|