公开(公告)号：US10018786B2

公开(公告)日：2018-07-10

申请号：US15228014

申请日：2016-08-04

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kwang Ryong Oh ,  Hong-Seung Kim

IPC: H01P7/00 ,  G02B6/293 ,  G01D5/353 ,  G02B6/124 ,  G02B6/136 ,  G02B6/32 ,  H01S5/10 ,  H01S5/30 ,  G02B6/12

CPC classification number: G02B6/29341 ,  G01D5/35319 ,  G02B6/12007 ,  G02B6/124 ,  G02B6/136 ,  G02B6/32 ,  G02B2006/12097 ,  G02B2006/12104 ,  G02B2006/12138 ,  H01S5/0028 ,  H01S5/026 ,  H01S5/1075 ,  H01S5/125 ,  H01S5/22 ,  H01S5/3013 ,  H01S5/4012 ,  H01S5/4031 ,  H01S5/4068

Abstract: There is provided a semi-circular resonator using a whispering gallery mode (WGM) and an optical sensor using the same. Accordingly, an active region that is a waveguide of an active layer in which laser oscillation is caused by gains of advancing beams is deeply etched in a semi-circular or semi-ring shape.