公开(公告)号：US20230301559A1

公开(公告)日：2023-09-28

申请号：US18190617

申请日：2023-03-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jong Deog Kim ,  Bong Kyu Kim ,  CHUL HUH

IPC: A61B5/145 ,  A61B5/1455 ,  A61B5/01 ,  A61B5/00 ,  A61B5/107

CPC classification number: A61B5/14532 ,  A61B5/1455 ,  A61B5/01 ,  A61B5/6843 ,  A61B5/7246 ,  A61B5/1072 ,  A61B5/1075 ,  A61B5/1079 ,  A61B5/0095 ,  A61B5/6816 ,  A61B2562/0271 ,  A61B2562/0238 ,  A61B2562/0247

Abstract: Disclosed are a noninvasive blood glucose measurement apparatus and method using multiple sensors. The noninvasive blood glucose measurement apparatus includes: a first light source unit configured to irradiate light to the biological tissue, a second light source unit configured to irradiate light to the biological tissue, a first receiving unit configured to receive a photoacoustic and/or light transmission signal generated by the light, a second receiving unit configured to receive a light reflection signal reflected by the biological tissue, and a measurement unit configured to measure light reflection characteristics of the biological tissue by using the light reflection signal, measure photoacoustic and/or light transmission characteristics of the biological tissue, and measure blood glucose of the biological tissue on the basis of the light reflection characteristics and the photoacoustic and/or light transmission characteristics.

公开(公告)号：US20230291168A1

公开(公告)日：2023-09-14

申请号：US18198520

申请日：2023-05-17

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Dong Hoon SONG ,  Hong-Seok SEO ,  CHUL HUH

IPC: H01S3/1115 ,  H01S3/0941 ,  H01S3/106 ,  H01S3/10 ,  H01S3/16 ,  H01S3/131 ,  H01S3/081 ,  H01S3/094 ,  H01S3/13

CPC classification number: H01S3/1115 ,  H01S3/09415 ,  H01S3/1068 ,  H01S3/10053 ,  H01S3/1636 ,  H01S3/1312 ,  H01S3/0816 ,  H01S3/094096 ,  H01S3/1625 ,  H01S3/1305

Abstract: A femtosecond pulse laser apparatus includes a pump light source configured to provide a pump light, a gain medium configured to obtain a gain of a laser light using the pump light, a first curved mirror and a second curved mirror, which are provided at both sides of the gain medium, an output mirror configured to transmit a portion of the laser light and reflect the other portion of the laser light to the gain medium, a mode locking portion configured to generate a femtosecond pulse of the laser light, and an acoustic wave generator configured to provide an acoustic wave into the gain medium so as to adjust self-phase modulation of the laser light.

公开(公告)号：US20220395924A1

公开(公告)日：2022-12-15

申请号：US17728302

申请日：2022-04-25

Applicant: Electronics and Telecommunications Research Institute

Inventor： Dong Hoon SONG ,  Hong-Seok SEO ,  CHUL HUH

IPC: B23K26/0622 ,  B23K26/06 ,  H01S3/00

Abstract: Provided is a two-photon spectroscopy including a light source configured to generate first laser light having a pulse, a pulse width correction device configured to receive the first laser light to output a second laser light, an optical system through which the second laser light passes, a first two-photon sensor configured to measure a first pulse width of the first laser light generated from the light source, and a second two-photon sensor configured to measure a second pulse width of the second laser light passing through the optical system, wherein the pulse width correction device corrects a difference between the first pulse width and the second pulse width.