公开(公告)号：WO2003078339A1

公开(公告)日：2003-09-25

申请号：PCT/GB2003/000942

申请日：2003-03-06

Applicant: UNIVERSITY OF SOUTHAMPTON ,  FRAMPTON, Kenneth, Edward ,  HEWAK, Daniel, William ,  KIANG, Kai, Ming ,  MONRO, Tanya, Mary ,  MOORE, Roger, Charles ,  RICHARDSON, David, John ,  RUTT, Harvey ,  TUCKNOTT, John, Antony

Inventor： FRAMPTON, Kenneth, Edward ,  HEWAK, Daniel, William ,  KIANG, Kai, Ming ,  MONRO, Tanya, Mary ,  MOORE, Roger, Charles ,  RICHARDSON, David, John ,  RUTT, Harvey ,  TUCKNOTT, John, Antony

IPC: C03B37/012

CPC classification number: C03B37/027 ,  B29C47/0028 ,  B29C47/20 ,  B29D11/00663 ,  B29L2011/0075 ,  B29L2031/60 ,  B82Y20/00 ,  C03B37/0122 ,  C03B37/0124 ,  C03B37/01274 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/60 ,  C03B2201/82 ,  C03B2201/86 ,  C03B2201/88 ,  C03B2203/10 ,  C03B2203/12 ,  C03B2203/14 ,  C03B2203/16 ,  C03B2203/18 ,  C03B2203/20 ,  C03B2203/42 ,  C03B2205/09 ,  C03B2205/10 ,  G01N21/552 ,  G02B6/02347 ,  G02B6/02357 ,  G02B6/02371 ,  G02B6/02385 ,  G02B6/0239 ,  H01S3/06708 ,  H01S3/06741 ,  H01S3/302

Abstract: Microstructured optical fibre is fabricated using extrusion. The main design of optical fibre has a core suspended in an outer wall by a plurality of struts. A specially designed extruder die is used which comprises a central feed channel, flow diversion channels arranged to divert material radially outwards into a welding chamber formed within the die, a core forming conduit arranged to receive material by direct onward passage from the central feed channel, and a nozzle having an outer part in flow communication with the welding chamber and an inner part in flow communication with the core forming conduit, to respectively define an outer wall and core of the preform. With this design a relatively thick outer wall can be combined with thin struts (to ensure extinction of the optical mode field) and a core of any desired diameter or other thickness dimension in the case of non-circular cores. As well as glass, the extrusion process is suitable for use with polymers. The microstructured optical fibre is considered to have many potential device applications, in particular for non-linear devices, lasers and amplifiers.

Abstract translation: 微结构光纤采用挤压制造。 光纤的主要设计是通过多个支柱将核心悬挂在外壁上。 使用特别设计的挤出机模具，其包括中心进料通道，流动分流通道布置成径向向外转移到形成在模具内的焊接室中;芯形成导管，布置成通过从中心进料通道直接向前通过而接收材料， 以及具有与焊接室流体连通的外部部分和与芯部形成导管流动连通的内部部分的喷嘴，以分别限定预成型件的外壁和芯部。 通过这种设计，在非圆形芯的情况下，相对较厚的外壁可以与薄支柱（以确保光学模式场的消光）和任何所需直径或其他厚度尺寸的芯组合。 除了玻璃之外，挤出方法适用于聚合物。 微结构光纤被认为具有许多潜在的器件应用，特别是对于非线性器件，激光器和放大器。