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:
Aug. 30, 2005
Filed:
Apr. 25, 2002
Applicant:
Yale Zhang, Sunnyvale, CA (US);
Inventor:
Yale Zhang, Sunnyvale, CA (US);
Assignee:
Alliance Fiber Optic Products, Inc., Sunnyvale, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B006/00 ; G02B006/32 ;
U.S. Cl.
CPC ...
Abstract
Optical devices for adding/dropping an optical signal with a particular wavelength are disclosed. According to embodiment, a reflection channel module including a grin lens and a bandpass filter is employed to transmit the optical with a particular wavelength and reflect all other channel signals. The transmitted signal is regulated by an optical regulator (e.g. variable optical attenuator) before it is output from the device via a grin lens. As a result, a regulated channel can be dropped or added depending on an application.