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:
Nov. 26, 2013
Filed:
Sep. 22, 2008
Leonardo Coelho, Munich, DE;
Oscar Gaete, Munich, DE;
Norbert Hanik, Berlin, DE;
Bernhard Spinnler, Oberhaching, DE;
Leonardo Coelho, Munich, DE;
Oscar Gaete, Munich, DE;
Norbert Hanik, Berlin, DE;
Bernhard Spinnler, Oberhaching, DE;
Nokia Siemens Networks OY, Espoo, FI;
Abstract
The arrangement includes a transmitter (-) with two optical sources () generating two optical carrier signals (L, L) having different frequencies. The optical carrier signals (L, L) are combined and divided in a first coupler () and fed to carrier signal inputs of two modulators (). The mixed carrier signals (L+jL, jL+L) are separately modulated by two modulation signals (a(t)) and (b(t)) and the modulated signals ((A+jA), (jB+B)) are combined in a first combiner and emitted as transmission signal (X(t)). Only on demodulator is necessary to regain the modulation signals (a(t), b(t)).