公开(公告)号：US11249249B2

公开(公告)日：2022-02-15

申请号：US16429203

申请日：2019-06-03

申请人： CORNING INCORPORATED

发明人： John Steele Abbott, III ,  Scott Robertson Bickham ,  Thomas Arthur Hanson ,  Tiffany Ann Lindstrom

IPC分类号： G02B6/028 ,  G01M11/00 ,  H04L12/873

摘要： A method is used to select a multimode fiber meeting requirements of a first minimum bandwidth at a first wavelength and a second minimum bandwidth at a second wavelength different from the first wavelength. Differential mode delay (DMD) data is measured for the multimode fiber at the first wavelength. The DMD data comprises output laser pulse data as a function of the radial position of an input laser pulse having the first wavelength. The DMD data is transformed into mode group space, to obtain relative mode group delay data as a function of mode group. The multimode fiber is selected based on meeting requirements of the first minimum bandwidth at the first wavelength based on a first set of criteria, comprising a first criterion using as input the measured differential mode delay (DMD) data for the multimode fiber measured at the first wavelength. The multimode fiber is selected based on meeting requirements of the second minimum bandwidth at the second wavelength based on a second set of criteria, comprising: a second criterion using as input the relative mode group delay data. A related system is also described.

公开(公告)号：US20190383999A1

公开(公告)日：2019-12-19

申请号：US16429203

申请日：2019-06-03

申请人： CORNING INCORPORATED

发明人： John Steele Abbott III ,  Scott Robertson Bickham ,  Thomas Arthur Hanson ,  Tiffany Ann Lindstrom

IPC分类号： G02B6/028 ,  G01M11/00 ,  H04L12/873

摘要： A method is used to select a multimode fiber meeting requirements of a first minimum bandwidth at a first wavelength and a second minimum bandwidth at a second wavelength different from the first wavelength. Differential mode delay (DMD) data is measured for the multimode fiber at the first wavelength. The DMD data comprises output laser pulse data as a function of the radial position of an input laser pulse having the first wavelength. The DMD data is transformed into mode group space, to obtain relative mode group delay data as a function of mode group. The multimode fiber is selected based on meeting requirements of the first minimum bandwidth at the first wavelength based on a first set of criteria, comprising a first criterion using as input the measured differential mode delay (DMD) data for the multimode fiber measured at the first wavelength. The multimode fiber is selected based on meeting requirements of the second minimum bandwidth at the second wavelength based on a second set of criteria, comprising: a second criterion using as input the relative mode group delay data. A related system is also described.