Autor: |
Mielenz, K. D., Nefflen, K. F., Rowley, W. R. C., Wilson, D. C., Engelhard, E. |
Zdroj: |
Applied Optics; February 1968, Vol. 7 Issue: 2 p289-293, 5p |
Abstrakt: |
Measurements, performed at NBS, NPL, and PTB, on helium–neon lasers stabilized on the Lamb dip, have shown that the wavelengths of these lasers fell within approximately 1 part in 10^7. Beyond this limit, different lasers were found to emit different wavelengths. In addition, the wavelength of a given laser may vary during the life of its discharge tube. Pressure shifts appear to be a major cause of these variations. |
Databáze: |
Supplemental Index |
Externí odkaz: |
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