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:
Apr. 08, 2003
Filed:
May. 18, 2000
Hongchuan Wang, Fremont, CA (US);
Mei Yan, Cupertino, CA (US);
Other;
Abstract
The present invention discloses an improved wavelength slicing technique for demultiplexing a composite optical signal. The technique applies a method for demultiplexing the composite optical signal for transmitting data signals over a plurality of data channels of different wavelengths represented by &lgr; , &lgr; , &lgr; , &lgr; , . . . &lgr; where n is a positive integer. The method includes a step a) of receiving the composite optical signal into an asymmetric wavelength slicing device through a device input port. And step b) of slicing the composite signal and extracting a first composite optical signal comprising data signals transmitted in a first set of data channels &lgr; , &lgr; , &lgr; , &lgr; , . . . &lgr; through a first output port. And, extracting a second composite optical signal comprising data signals transmitted in a second set of data channels &lgr; , &lgr; , &lgr; , &lgr; , . . . &lgr; through a second output port wherein the second set of data channels is complimentary and asymmetric to the first set of data channels.