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. 15, 2012
Filed:
Apr. 16, 2010
Gabriel Walter, Champaign, IL (US);
Milton Feng, Champaign, IL (US);
Nick Holonyak, Jr., Urbana, IL (US);
Han Wui Then, Hillsboro, OR (US);
Chao-hsin Wu, Champaign, IL (US);
Gabriel Walter, Champaign, IL (US);
Milton Feng, Champaign, IL (US);
Nick Holonyak, Jr., Urbana, IL (US);
Han Wui Then, Hillsboro, OR (US);
Chao-Hsin Wu, Champaign, IL (US);
Quantum Electro Opto Systems Sdn. Bhd., Melaka, MY;
The Board of Trustees of The University of Illinois, Urbana, IL (US);
Abstract
A method for producing a high frequency optical signal component representative of a high frequency electrical input signal component, includes the following steps: providing a semiconductor transistor structure that includes a base region of a first semiconductor type between semiconductor emitter and collector regions of a second semiconductor type; providing, in the base region, at least one region exhibiting quantum size effects; providing emitter, base, and collector electrodes respectively coupled with the emitter, base, and collector regions; applying electrical signals, including the high frequency electrical signal component, with respect to the emitter, base, and collector electrodes to produce output spontaneous light emission from the base region, aided by the quantum size region, the output spontaneous light emission including the high frequency optical signal component representative of the high frequency electrical signal component; providing an optical cavity for the light emission in the region between the base and emitter electrodes; and scaling the lateral dimensions of the optical cavity to control the speed of light emission response to the high frequency electrical signal component.