Absolute interferometry with a 670-nm external cavity diode laser.

  title={Absolute interferometry with a 670-nm external cavity diode laser.},
  author={Jack A. Stone and Alois Stejskal and L. Baking Dawn Howard},
  journal={Applied optics},
  volume={38 28},
In the past few years there has been much interest in use of tunable diode lasers for absolute interferometry. Here we report on use of an external cavity diode laser operating in the visible (lambda approximately 670 nm) for absolute distance measurements. Under laboratory conditions we achieve better than 1-microm standard uncertainty in distance measurements over a range of 5 m, but significantly larger uncertainties will probably be more typical of shop-floor measurements where conditions… CONTINUE READING
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