公开(公告)号：US11942750B2

公开(公告)日：2024-03-26

申请号：US17101081

申请日：2020-11-23

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Yi-Chi Lee ,  Hsin-Chia Su ,  Shih-Ting Lin ,  Yu-Cheng Song ,  Fu-Shun Ho ,  Chih-Chun Chen

IPC: H01S3/00 ,  G02B6/293 ,  H01S3/067 ,  H01S3/16

CPC classification number: H01S3/0014 ,  G02B6/29389 ,  H01S3/06708 ,  H01S3/1608

Abstract: A laser inspection system is provided. A laser source emits a laser with a first spectrum and the laser is transmitted by a first optical fiber. A gain optical fiber doped with special ions is connected to the first optical fiber, and a light detector is provided around the gain optical fiber. When the laser with the first spectrum passes through the gain optical fiber, the gain optical fiber absorbs part of the energy level of the laser with the first spectrum, so that the laser with the first spectrum is converted to generate light with a second spectrum based on the frequency conversion phenomenon. The light detector detects the intensity of the light with the second spectrum, so that the power of the laser source can be obtained.

公开(公告)号：US20220131326A1

公开(公告)日：2022-04-28

申请号：US17101081

申请日：2020-11-23

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Yi-Chi Lee ,  Hsin-Chia Su ,  Shih-Ting Lin ,  Yu-Cheng Song ,  Fu-Shun Ho ,  Chih-Chun Chen

IPC: H01S3/00 ,  H01S3/067 ,  H01S3/16 ,  G02B6/293

Abstract: A laser inspection system is provided. A laser source emits a laser with a first spectrum and the laser is transmitted by a first optical fiber. A gain optical fiber doped with special ions is connected to the first optical fiber, and a light detector is provided around the gain optical fiber. When the laser with the first spectrum passes through the gain optical fiber, the gain optical fiber absorbs part of the energy level of the laser with the first spectrum, so that the laser with the first spectrum is converted to generate light with a second spectrum based on the frequency conversion phenomenon. The light detector detects the intensity of the light with the second spectrum, so that the power of the laser source can be obtained.