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:
Dec. 16, 2008
Filed:
Jul. 25, 2006
Alan Kathman, Charlotte, NC (US);
John Barnett Hammond, Charlotte, NC (US);
Robert Tekolste, Charlotte, NC (US);
Alvaro Cruz Cabrera, Concord, NC (US);
Alan Kathman, Charlotte, NC (US);
John Barnett Hammond, Charlotte, NC (US);
Robert TeKolste, Charlotte, NC (US);
Alvaro Cruz Cabrera, Concord, NC (US);
Tessera North America, Inc., Charlotte, NC (US);
Abstract
A wavelength locker for use at more than one wavelength includes filters with different characteristics for a corresponding detector. The filters may be etalons having different free spectral ranges, e.g., having different apparent or real thicknesses. If more than three such filters are used outputting offset periodic signals, a reference detector may be eliminated and continuous operation over a wavelength range may be realized.