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:
May. 04, 2010
Filed:
May. 18, 2006
David Graham Moodie, Suffolk, GB;
Michael James Robertson, Ipswich, GB;
Ian Douglas Henning, Suffolk, GB;
David Graham Moodie, Suffolk, GB;
Michael James Robertson, Ipswich, GB;
Ian Douglas Henning, Suffolk, GB;
The Centre For Integrated Photonics Limited, Ipswich, GB;
University of Essex, Colchester, Essex, GB;
Abstract
A detector for electromagnetic radiation in the range 80 GHz to 4 THz comprises a laser light source () an optical modulator () arranged to modulate light from the laser light source () and a filter system () for selecting a defined range of frequencies of the modulated light. The optical modulator is an electroabsorption modulator () with an antenna () which is sensitive to electromagnetic radiation in the range 80 GHz to 4 THz. The signal received by the antenna () modulates the electric field across the electroabsorption modulator (), whereby to modulate the light from the laser light source ().