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Machine translation
1. (WO1980001958) MULTIMODE FIBER WITH 2-DEPENDENT INDEX PROFILE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/001958    International Application No.:    PCT/US1980/000209
Publication Date: 18.09.1980 International Filing Date: 03.03.1980
IPC:
G02B 6/028 (2006.01)
Applicants:
Inventors:
Priority Data:
20994 16.03.1979 US
Title (EN) MULTIMODE FIBER WITH 2-DEPENDENT INDEX PROFILE
(FR) FIBRE MULTIMODE AVEC PROFILE D"INDEX A DEPENDANCE 2
Abstract: front page image
(EN)Increased mode dispersion in graded-index multimode optical fibers due to defects in the index profile can be significantly reduced if the average defect is caused to varnish over the length of the fiber. For fibers with non-optimum (Alpha)-values, minimum impulse response can be achieved when (Alpha) varies along the fiber, such that the average value of (Alpha) is equal to (Alpha)opt. The effect of fluctuations superimposed upon the index profile are minimized by introducing an odd number of phase reversals in the fluctuations equally spaced along the fiber.
(FR)La dispersion accrue du mode dans les fibres optiques multimodes a index gradue due aux defauts du profil d"index peut etre sensiblement reduite si le defaut moyen disparait sur la longueur de la fibre. Pour des fibres avec des valeurs (Alpha) non optimum, une reponse a impulsion minimum peut etre obtenue lorsque (Alpha) varie le long de la fibre, de sorte que la valeur moyenne d" (Alpha) soit egale a (Alpha) opt. L"effet des fluctuations superposees sur le profil d"index sont reduites au minimum en introduisant un nombre impair d"inversement de phases dans les fluctuations egalement espaces le long de la fibre.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)