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:
Sep. 19, 2000
Filed:
Feb. 05, 1998
Anders Djupsjobacka, Solna, SE;
Telefonaktiebolaget LM Ericsson, Stockholm, SE;
Abstract
In transmission of optical signals in a dispersive medium, the signals are transmitted simultaneously in two modes in an optical fiber (15), which are orthogonal to each other, one of the signals being a non-chirped amplitude modulated signal modulated by an amplitude modulator (3), and the other signal is a phase modulated signal modulated by a phase modulator (5). The received signal is formed by the sum of the amplitude modulated contributions of the two signals. In an optical fiber system, two orthogonal modes of polarization in the same fiber can be chosen. In this manner it will be possible to transmit high bit rates and primarily over long distances.