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. 10, 2008
Filed:
Sep. 06, 2002
Emmanuel Dotaro, Verrieres le Buisson, FR;
Nicolas Le Sauze, Bures-sur-Yvette, FR;
An GE, Plano, TX (US);
Ljubisa Tancevski, Dallas, TX (US);
Emmanuel Dotaro, Verrieres le Buisson, FR;
Nicolas Le Sauze, Bures-sur-Yvette, FR;
An Ge, Plano, TX (US);
Ljubisa Tancevski, Dallas, TX (US);
Alcatel, Paris, FR;
Abstract
The invention relates to an optical ring network comprising stations () which are connected to at least one optical fiber by means of optical couplers, the two ends of the optical fiber being connected to a point of presence or an optical network access node. The point of presence comprises (k) at least an optical emitter (-) which emits a falling optical signal having at lest one first wavelength () in the direction of one end of the optical fibers () and (ii) at least one optical receiver (-) which receives a rising optical signal having at least one second wavelength which is different form the first wavelength. The aforementioned optical network access node comprises means such as a hub () which can be used for the communication between the optical receiver (-) and the optical emitter (-). The wavelengths of the rising signals and the wavelengths of the falling signals are shared by several stations.