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:
Nov. 07, 2006
Filed:
Mar. 24, 2006
OH Kee Kwon, Daejeon, KR;
Kang Ho Kim, Daejeon, KR;
Kwang Ryong OH, Daejeon, KR;
Jong Hoi Kim, Daejeon, KR;
Eun Deok Sim, Daejeon, KR;
Hyun Soo Kim, Daejeon, KR;
Oh Kee Kwon, Daejeon, KR;
Kang Ho Kim, Daejeon, KR;
Kwang Ryong Oh, Daejeon, KR;
Jong Hoi Kim, Daejeon, KR;
Eun Deok Sim, Daejeon, KR;
Hyun Soo Kim, Daejeon, KR;
Abstract
Provided is a wavelength tunable light source that can electrically tune wavelengths by monolithically integrating an optical amplifier, a beam steering unit, and a concave diffraction grating on a single substrate. A beam is deflected by the beam steering unit when an electrical signal is applied to two electrodes installed in the beam steering unit to be incident on the diffraction grating, and then diffracted by the diffraction grating according to the incidence angle such that part of the beam with a specific wavelength is reflected, thereby achieving wavelength tuning. Since the wavelength tuning is achieved electrically, the wavelength tunable light source is structurally stable and has a rapid wavelength tuning rate.