Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21
Online ISSN : 2424-3086
ISSN-L : 2424-3086
2021.10
Session ID : 101-045
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High precision cavity length measurement of external cavity diode laser
Shuhei GodaShuzo MasuiShotaro KadoyaMasaki MichihataSatoru Takahashi
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Abstract

In recent years, machine tools, industrial equipment, and measuring equipment have become finer and more accurate. On the other hand, the range of measurement/processing is expanding. Therefore, the development of accurate length measurement technology that is highly accurate and robust to the environment is required. In this study, we proposed the external cavity diode laser with the dual-periodic grating, where laser beam having two separated wavelengths are excited. Using two wavelengths, the mode number could be determined precisely. We aimed for verification experimentally.

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© 2021 The Japan Society of Mechanical Engineers
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