发明公开
EP0013972A1 Tapered mixing rod for a fiber optical multi-port coupler
失效
KonischerMischkörperfüreinen fiber-optischen Mehrfachkuppler。
- 专利标题： Tapered mixing rod for a fiber optical multi-port coupler
- 专利标题（中）： KonischerMischkörperfüreinen fiber-optischen Mehrfachkuppler。
-
申请号： EP80100310.4申请日： 1980-01-22
-
公开(公告)号： EP0013972A1公开(公告)日： 1980-08-06
- 发明人: James, Kenneth Allan , Quick, William Henry , Strahan, Virgil Haskell
- 申请人： ROCKWELL INTERNATIONAL CORPORATION
- 申请人地址： 2230 East Imperial Highway El Segundo California 90245 US
- 专利权人： ROCKWELL INTERNATIONAL CORPORATION
- 当前专利权人： ROCKWELL INTERNATIONAL CORPORATION
- 当前专利权人地址： 2230 East Imperial Highway El Segundo California 90245 US
- 代理机构： Wagner, Karl H., Dipl.-Ing.
- 优先权： US5616 19790122
- 主分类号： G02B5/14
- IPC分类号： G02B5/14
摘要：
An apparatus for improved efficiency coupling of optical energy is disclosed. Coupling of the optical energy from one or more input fiber optic cables (30, 32) to a larger number of output fiber optic cables (34) is accomplished by means of a mixing rod (28) having input and output cross-sectional areas substantially matched to the input and output coupled fiber groups, respectively, and having appropriate tapering of the rod crosssection therebetween.
As a result of tapering the mixing rod, the coupler provides gradual reflection angle reduction that permits retention of the transmission system numerical aperture despite random refractive bending due to surface imperfections at the mixing rod/fiber coupling junction. In addition, an input coupling junction of prior art straight mixing rod couplers is obviated in the tapered mixing rod coupler, thereby eliminating a source of undesirable coupling loss.
As a result of tapering the mixing rod, the coupler provides gradual reflection angle reduction that permits retention of the transmission system numerical aperture despite random refractive bending due to surface imperfections at the mixing rod/fiber coupling junction. In addition, an input coupling junction of prior art straight mixing rod couplers is obviated in the tapered mixing rod coupler, thereby eliminating a source of undesirable coupling loss.
信息查询
