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:
Sep. 23, 1997
Filed:
Jul. 13, 1995
Hye-Yong Chu, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
An optical controlled resonant tunneling oscillator utilizing variation of a resonant tunneling oscillator in accordance with a negative differential resistance, a series resistance and a static capacitance varied in response to the intensity of light when light is incident on a resonant tunneling device having a double barrier quantum well structure and a method for fabricating the same are disclosed. The oscillator modulates the frequency over 2 or 3 levels in response to the intensity of incident light as compared to a conventional photoelectric system that modulates the frequency in response to the ON/OFF electric signal, thereby simplifying the system. The oscillator controls the resonant tunneling at high speed level with light enably processing a signal from tens to hundreds of GHz.