Abstract
The Michelson wavemeter is a popular instrument in many experiments where the high-precision measurement of a cw laser wavelength is required. In this paper, we describe a simple and inexpensive way to obtain high-precision measurements with this classical physicist’s tool. We exploit the time stamp provided by the high-frequency clock present in modern data acquisition cards to measure the fractional uncertainty of the interference signal. The resulting relative uncertainty value for our current set-up is of the order of 10−8 and can be potentially improved by a factor of 100.
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Pedregosa-Gutierrez, J., Guyomarc’h, D., Vedel, M. et al. Computer-controlled high-precision Michelson wavemeter. Eur. Phys. J. Plus 129, 203 (2014). https://doi.org/10.1140/epjp/i2014-14203-3
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DOI: https://doi.org/10.1140/epjp/i2014-14203-3