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:
Feb. 05, 2013
Filed:
Mar. 17, 2008
Mirco Scaffardi, Parma, IT;
Gianluca Berrettini, Gragnano, IT;
Rodolfo Di Muro, Stockholm, SE;
Bimal Nayar, Milton Keyne, GB;
Antonella Bogoni, Mantova, IT;
Luca Poti, Pisa, IT;
Mirco Scaffardi, Parma, IT;
Gianluca Berrettini, Gragnano, IT;
Rodolfo Di Muro, Stockholm, SE;
Bimal Nayar, Milton Keyne, GB;
Antonella Bogoni, Mantova, IT;
Luca Poti, Pisa, IT;
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Abstract
An optical transmitter apparatus comprises at least three input transmitters that each provide at an output an NRZ optical signal, at least two of the NRZ optical signals having substantially the same bit rate, each of the signals having a bit rate which is less than 100 Gbit/s and the sum of the bit rates of all of the at least three transmitters being equal to or greater than 100 Gbit/s, an NRZ to RZ converter associated with each transmitter which converts each NRZ signal into an optical RZ signal, an optical time division multiplexer which converts the RZ signals into at least two further signals, and a polarization multiplexer which processes the two further signals to provide two output signals of differing polarization.