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:
Mar. 20, 1979
Filed:
Aug. 03, 1976
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350355 ; 350 9614 ;
Abstract
The invention discloses a light modulator comprising a semiconductor substrate, a curved thin-film semiconductor optical waveguide having a predetermined curvature and, semiconductor electrode layers formed contiguous to the waveguide, whereby when a potential is applied across the electrode layers, the carrier density in the regions adjacent the waveguide may be varied and consequently the radiation loss in the curved waveguide may be varied accordingly to modulate light radiating through the waveguide in response to the electric potential applied across the electrode layers.