Calculating the modes properties for glass optical fibers at He-Ne laser wavelength.

In this paper, glass optical fibers with core radii (1–5) µm and a numerical aperture of 0.17 were studied and their modes properties have been calculated at a wavelength of helium-neon (He-Ne) laser (0.6328 µm) by using RP Fiber Calculator (free version 2022). Multimode fibers can be obtained when the radius of the fiber core is large compared to the wavelength. Otherwise, a single-mode fiber is obtained. It has been concluded that all the calculated properties increase with increasing core radius. Amplitude and intensity profiles of the modes were shown. [ABSTRACT FROM AUTHOR]