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:
Feb. 29, 2000
Filed:
Feb. 26, 1998
Byong-gwon You, Daejeon, KR;
Hyung-jae Lee, Seoul, KR;
Tae-hyung Rhee, Sungnam, KR;
Yong-woo Lee, Yongin, KR;
SamSung Electronics Co., Ltd., Kyungki-do, KR;
Abstract
A low-loss optically active device is provided by forming a lower clad layer using linear polymer on a substrate capable of transmitting ultraviolet (UV) light, forming a non-linear polymer core region of a waveguide region; forming a linear polymer core region on opposite sides of the non-linear core region, and forming an upper clad layer on the lower clad layer and linear and non-linear core regions of the waveguide region. The waveguide is formed using non-linear polymer only at the region where the non-linear effect such as optical modulation or optical switching occurs, and is formed using linear polymer at the remaining regions, thereby minimizing the overall waveguiding loss of the device.