The present invention provides a method for manufacturing a photonic crystal fiber that has a core portion in which a fiber core extends in a lengthwise direction and is formed as a solid or a void, and a porous clad portion provided around the core portion and having numerous pores extending along the core portion. A preform is fabricated by packing numerous capillaries into a cylindrical support pipe such that they are parallel to the central axis of the support pipe and disposing a core rod to serve as the solid core portion at the central axis portion of the support pipe. The preform is drawn to make it small in diameter.
申请公布号
EP1325893(A1)
申请公布日期
2003.07.09
申请号
EP20010967802
申请日期
2001.09.21
申请人
MITSUBISHI CABLE INDUSTRIES, LTD.;NIPPON TELEGRAPH AND TELEPHONE CORPORATION