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:
Oct. 31, 2006
Filed:
May. 11, 2004
Yukari Terakawa, Kyoto, JP;
Toshinari Mori, Nara, JP;
Hayami Hosokawa, Kyoto, JP;
OMRON Corporation, Kyoto, JP;
Abstract
Light of wavelengths λand λ(λ) is propagated in a first core. The light emitted form the first core is divided at a filter. That is, the light of the wavelength λtransmits through the filter and is made incident onto a third core while the light of the wavelength λis reflected from a filter and is made incident onto a second core. The second core has a sectional area which works in a single mode for the light of the wavelength λand works in a multiple mode for the light of the wavelength λ. It is therefore possible to prevent noise or stray light in an optical multiplexer/demultiplexer.