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:
Jul. 23, 2013
Filed:
Nov. 02, 2010
Yong-chul Cho, Suwon-si, KR;
Yong-tak Lee, Gwangju, KR;
Yong-hwa Park, Yongin-si, KR;
Byung-hoon NA, Seoul, KR;
Kwang-mo Park, Namwon-si, KR;
Chang-soo Park, Daejeon, KR;
Yong-chul Cho, Suwon-si, KR;
Yong-tak Lee, Gwangju, KR;
Yong-hwa Park, Yongin-si, KR;
Byung-hoon Na, Seoul, KR;
Kwang-mo Park, Namwon-si, KR;
Chang-soo Park, Daejeon, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Gwangju Institute of Science and Technology, Gwangju, KR;
Abstract
Optical modulator having wide bandwidth based on Fabry-Perot resonant reflection is disclosed. The optical modulator includes: a bottom Distributed Bragg Reflector (DBR) layer; a top DBR layer including at least one layer, and a modified layer; and an active layer disposed between bottom and top DBR layers, wherein the at least one layer includes at least one pair of a first refractive index layer having a first refractive index and a second refractive index layer having a second refractive index, the modified layer includes at least one pair of a third refractive index layer having a third refractive index and a fourth refractive index layer having a fourth refractive index, the third and the fourth refractive indexes being different, and at least one of the third and the fourth refractive index layers has a second optical thickness that is not λ/4 or that is not an odd multiple thereof.