The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 11, 1983
Filed:
Feb. 02, 1981
Applicant:
Inventor:
Akira Hasegawa, New Providence, NJ (US);
Assignee:
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455612 ; 350 9614 ; 350 9615 ; 455610 ;
Abstract
A multimode fiber lightwave communication system using pulses of center wavelength in the region of anomalous dispersion of the fiber material. For instance, in silica-based fiber, this implies a wavelength greater than about 1.3 .mu.m. In such a system, modal dispersion can be reduced by using the nonlinear properties of the fiber material. In particular, by adjusting the pulse amplitude to satisfy the expression ##EQU1## where v.sub.gj is the group velocity of the j-th mode,