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. 13, 2011
Filed:
Mar. 10, 2004
Pierpaolo Boffi, Milan, IT;
Lucia Marazzi, Milan, IT;
Mario Martinelli, Milan, IT;
Livio Paradiso, Milan, IT;
Paola Parolari, Milan, IT;
Pierpaolo Boffi, Milan, IT;
Lucia Marazzi, Milan, IT;
Mario Martinelli, Milan, IT;
Livio Paradiso, Milan, IT;
Paola Parolari, Milan, IT;
Mosaid Technologies Incorporated, Ottawa, CA;
Abstract
A method of phase modulating optical radiation by the steps of phase modulating the optical radiation by using a modulator having an extinction ratio in order to provide a multilevel phase shift key signal, and applying to each optical pulse a phase-shift having an absolute value depending on the extinction ratio and a sign depending, for each of the optical pulses, on the respective optical phase value. An apparatus implementing the method is also disclosed.