发明授权
- 专利标题： Optical fiber preform, method of manufacturing optical fiber preform, and method of manufacturing optical fiber
- 专利标题（中）： 光纤预制棒，光纤预制棒的制造方法以及制造光纤的方法
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申请号： US11288311申请日： 2005-11-29
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公开(公告)号： US08789393B2公开(公告)日： 2014-07-29
- 发明人: Nobuaki Orita , Akihiro Kanao , Hideya Moridaira
- 申请人： Nobuaki Orita , Akihiro Kanao , Hideya Moridaira
- 申请人地址： JP Tokyo
- 专利权人： The Furukawa Electric Co., Ltd.
- 当前专利权人： The Furukawa Electric Co., Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2004-344588 20041129; JP2004-364929 20041216; JP2004-364930 20041216; JP2005-117310 20050414; JP2005-241301 20050823; JP2005-241302 20050823
- 主分类号： C03B37/018
- IPC分类号： C03B37/018
摘要：
A porous layer is formed by depositing a silica glass particle around a core rod. The porous layer is dehydrated. The dehydrated porous layer is sintered under a decreased pressure until the dehydrated porous layer becomes a translucent glass layer containing a closed pore. The translucent glass layer is vitrified under an ambient atmosphere including an inert gas other than a helium gas.
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