公开(公告)号：EP3528402A1

公开(公告)日：2019-08-21

申请号：EP19163241.3

申请日：2017-04-28

申请人： Panduit Corp.

发明人： CASTRO, Jose ,  PIMPINELLA, Richard J ,  KOSE, Bulent ,  LANE, Brett

IPC分类号： H04B10/073 ,  H04B10/079 ,  G02B6/028

摘要： A method of manufacturing a graded-index multimode optical fiber having at least one dopant. The graded-index multimode optical fiber comprising a core, the core having a center, a radius R, and a refractive index profile; and a cladding surrounding the core. The method comprising the steps of: selecting the at least one dopant; introducing the at least one dopant into the core; and controlling the concentration of the at least one dopant during the introduction to produce the refractive index profile, the at least one dopant being selected and the concentration of the at least one dopant being controlled such that the refractive index profile causes the graded-index multimode optical fiber to exacerbate modal chromatic dispersion interaction when coupled with an optical transmitter, the at least one dopant being further selected and the concentration of the at least one dopant being further controlled such that an effective modal bandwidth (EMB) of the graded-index multimode optical fiber is equal to a minimum modal bandwidth requirement specified by a defined standard +/- 10%.

公开(公告)号：EP3528403A1

公开(公告)日：2019-08-21

申请号：EP19163242.1

申请日：2017-04-28

申请人： Panduit Corp

发明人： CASTRO, Jose ,  PIMPINELLA, Richard J ,  KOSE, Bulent ,  LANE, Brett

IPC分类号： H04B10/073 ,  H04B10/079 ,  G02B6/028

摘要： A method for selecting a test optical fiber for use in testing one or more optical transmitter. The method comprising the steps of: for the test optical fiber determining: a desired effective modal bandwidth (EMB D ); a percentage of allowable variation of the EMB D ( A ); a desired length ( L D ); a percentage of allowable variation of the L D ( B ); a tolerance variable ( X ); and a desired total bandwidth BW, where BW = EMB D L D ; selecting a candidate optical fiber; obtaining an effective modal bandwidth of the candidate optical fiber ( EMB sp ); rejecting the candidate optical fiber when EMB sp ≥ EMB D ( 1 + A + B ) is true or when EMB sp ≤ EMB D ( 1-A-B-X ) is true; cutting the candidate optical fiber to a first length L 1 , where L 1 = L D ( 1 + B ) , when EMB sp ≥ EMB D ( 1 + A + B ) is false and when EMB sp ≤ EMB D ( 1-A-B-X ) is false; measuring an effective modal bandwidth of the candidate optical fiber cut to the first length L 1 ( EMB m1 ) ; accepting the candidate optical fiber cut to the first length L 1 as the test optical fiber when BW 1 − A ≤ EMB m 1 L 1 ≤ BW 1 + A is true; performing additional evaluation steps when BW 1 − A ≤ EMB m 1 L 1 ≤ BW 1 + A is false.