Using uncalibrated lasers as wavelength standards | NIST
At the 2007 meeting of the CCL, the CCL recommended that unstabilized helium-neon lasers operating at 633 nm should be included in the list of recommended standard frequencies (formerly known as the Mise en Pratique of the Definition of the Meter). This paper will discuss the technical basis for assigning a wavelength and uncertainty to the 633 ...