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:
Sep. 23, 2005
Applicant:
Cechan Tian, Plano, TX (US);
Inventor:
Cechan Tian, Plano, TX (US);
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/295 (2006.01); G02B 6/26 (2006.01); G02B 6/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
Monitoring modulation alignment variation of optical modulators includes receiving an optical signal at an input fiber. The optical signal has been modulated by optical modulators. Photons of the optical signal are received at a photon reactive material operable to produce a reaction in response to the arrival of a predetermined number of photons. Reactions are produced in response to the arrival of the photons of the optical signal. Feedback is generated in response to reactions. The feedback reflects the waveform of the optical signal, and indicates modulation alignment variation among the optical modulators.