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. 28, 2005
Filed:
Oct. 09, 2002
Applicants:
Zhihao Chen, Carlsbad, CA (US);
Zheng Chen, Chengdu, CN;
BO Pi, Carlsbad, CA (US);
Inventors:
Assignee:
Oluma, Inc., Carlsbad, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B006/42 ;
U.S. Cl.
CPC ...
Abstract
Adjustable filters formed in fibers or waveguides based on evanescent coupling, where a coupling layer is formed between a waveguide overlay and a side-polished coupling port on the fiber or waveguide. A control mechanism may be provided to adjust a property of at least one of the waveguide overlay and the coupling layer to adjust the output of the filter.