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:
Jul. 26, 2022
Filed:
Dec. 19, 2016
Applicant:
Accelink Technologies Co., Ltd., Wuhan, CN;
Inventors:
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/035 (2006.01); G02B 6/12 (2006.01); G02F 1/01 (2006.01); G02B 6/125 (2006.01);
U.S. Cl.
CPC ...
G02F 1/0147 (2013.01); G02B 6/125 (2013.01); G02F 1/0102 (2013.01);
Abstract
A heating electrode for lowering stress of a light waveguide and a VOA. The heating electrode is provided on an upper cladding layer () of a PLC waveguide. The heating electrode is formed by combining two or more sub-heating electrodes () arranged at internals. Adjacent sub-heating electrodes () are connected by means of conductive electrodes () having a conductive function. By dividing a complete elongated heating electrode into a plurality of sub-heating electrodes (), the stress exerted to a waveguide core layer is lowered without affecting the heating efficiency, and thus the reliability of optical indexes of a device is effectively improved.