Design and development of high-power laser calibration system and alignment at the National Institute of Metrology (NIMT)

Kanokwan Nontapot; Chanasorn Nutsathaporn; Kantinan Phupanbai

doi:10.1117/12.3031735

30 September 2024 Design and development of high-power laser calibration system and alignment at the National Institute of Metrology (NIMT)

Kanokwan Nontapot, Chanasorn Nutsathaporn, Kantinan Phupanbai

Author Affiliations +

Proceedings Volume 13133, Optical System Alignment, Tolerancing, and Verification XV; 131330D (2024) https://doi.org/10.1117/12.3031735
Event: Optical Engineering + Applications, 2024, San Diego, California, United States

Abstract

This paper will present the newly developed high-power laser calibration system and alignment at the National Metrology Institute Thailand (NIMT). The system is composed of a high stability, high-power fiber laser with a wavelength of 1080 nm, as a laser source for calibration. Due to this wavelength is not visible to human eyes, the laser is equipped with a built-in red alignment laser and an automatic shutter that can be used for the routine alignment of the whole optical path. The method of calibration is in direct comparison using 2 beam samplers and 2 monitor power meters, for better accuracy. Two beam expanders are used to adjust the laser beam diameter. The reference power meter for calibration is a thermopile sensor. The optical characterization results of the reference power meter such as power non-linearity and detector surface non-uniformity, to be performed at the National Metrology Institute of Germany (PTB), will also be present.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Kanokwan Nontapot, Chanasorn Nutsathaporn, and Kantinan Phupanbai "Design and development of high-power laser calibration system and alignment at the National Institute of Metrology (NIMT)", Proc. SPIE 13133, Optical System Alignment, Tolerancing, and Verification XV, 131330D (30 September 2024); https://doi.org/10.1117/12.3031735

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