A new optical interference method to measure He-Ne laser wavelength


  • Akram Noori Muhammad 1Laser & Optoelectronics Eng. Department, University Technology, Iraq
  • Mashaan Attallah Mahmood Ministry of Education




Laser source, image fringes, wavelength


A new optical method used in our lab to get clear fringes of interference use “He Ne laser” as a light source. These experiment construct firstly to avoid our need to sodium lamb, Secondly, a convex lens was used to obtain a large image fringes to make the parameters more accurate than using the real fringes, by using a new mathematical relationships, the wavelength was measured. The results were more accurate than the normal methods used.


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Original Article

How to Cite

A. N. Muhammad and M. A. Mahmood, “A new optical interference method to measure He-Ne laser wavelength”, Al-Mustansiriyah Journal of Science, vol. 29, no. 2, pp. 179–181, Nov. 2018, doi: 10.23851/mjs.v29i2.410.

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