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:
Jun. 30, 1992
Filed:
Nov. 02, 1990
Applicant:
Inventor:
Pierluigi Poggiolini, Turin, IT;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385 24 ; 385 31 ; 385 11 ;
Abstract
A coherent optical-fiber transmission system is rendered insensitive to fluctuations of the state of polarization of the electromagnetic field due to propagation along the fiber by varying at the transmitting side the state of polarization of the optical carrier modulated by the information signal to be transmitted. The variation is such that spectral broadening of the intermediate frequency signal at the receiver is kept limited, while reception of half the power outgoing from the fiber is ensured.
Poggiolini, Pierluigi. (1992). Coherent optical-fiber communication system using polarization diversity (U.S. Patent No. 5127066). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5127066
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile