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:
May. 12, 2015
Filed:
Nov. 21, 2011
Seo Young Lee, Subuk-Myeon, KR;
Hyung Jong Lee, Subuk-Myeon, KR;
Seo Young Lee, Subuk-Myeon, KR;
Hyung Jong Lee, Subuk-Myeon, KR;
Other;
Abstract
Provided are a lightwave circuit and a method of manufacturing the same. The lightwave circuit includes a first substrate having an engraved core formation groove which is formed on an upper portion of the first substrate, a core layer which is formed inside the engraved core formation groove, a BPSG bonding layer which is formed on the first substrate including the core layer, and a second substrate which is formed on the BPSG bonding layer. Accordingly, light loss and branching uniformity of the lightwave circuit are effectively improved, and the lightwave circuit is manufactured simply and inexpensively while also further improving light loss and branching uniformity of the lightwave circuit.