Reissue Patent
- Patent Title: Optical fiber and method for making such fiber
- Patent Title (中): 光纤及其制造方法
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Application No.: US12511311Application Date: 2009-07-29
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Publication No.: USRE44288E1Publication Date: 2013-06-11
- Inventor: Ronald L. Kimball , Robert A. Knowlton , Joseph E. McCarthy , Ji Wang , Donnell T. Walton , Luis A. Zenteno
- Applicant: Ronald L. Kimball , Robert A. Knowlton , Joseph E. McCarthy , Ji Wang , Donnell T. Walton , Luis A. Zenteno
- Applicant Address: US NY Corning
- Assignee: Corning Incorporated
- Current Assignee: Corning Incorporated
- Current Assignee Address: US NY Corning
- Agent Svetlana Z. Short
- Main IPC: G02B6/00
- IPC: G02B6/00 ; G02B6/02
Abstract:
According to one example of the invention an optical fiber comprises: (i) silica based, rare earth doped core having a first index of refraction n1; (ii) at least one silica based cladding surrounding the core and having a second index of refraction n2, such that n1>n2; wherein at least one of the core or cladding is doped with Al2O3, such that the ratio of max wt % to min wt % of Al2O3 concentration is less than 2:1.
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