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:
Dec. 24, 2019
Filed:
Sep. 12, 2017
National Institute of Information and Communications Technology, Koganei-shi, Tokyo, JP;
Abstract
To provide an optical comb generation device and an optical comb signal generation method capable of stably generating an optical comb signal having an optical frequency interval exceeding the drive electric signal band of a modulator. When light output from a first optical modulatorand a second optical modulatoris multiplexed in a multiplexing unit, the first optical modulatorand the second optical modulatorcancel the even-ordered components or odd-ordered components included in the light output from the first optical modulatorand the second optical modulatorand, when light output from a third optical modulatorand a fourth optical modulatoris multiplexed in the multiplexing unit, the third optical modulatorand the fourth optical modulatorcancel the even-ordered components or odd-ordered components included in the light output from the third optical modulatorand the fourth optical modulator, wherein the same components cancelled in the light output from the first optical modulatorand the second optical modulatorare cancelled.