Bending , Heating and Pressure Effects of He-Ne Laserin Single Mode Fiber

Abstract

In this paper a single mode fiber have been chosen with a refractive index (1.50) to the core, and (1.485) to the cladding, with length of (2 m).

It was exposed this optical fiber to a bending with different diameters, and to a different temperatures as well as pressure due to putting different weights to study dispersion phenomenon which affects on a pulse shape that travels in optical fiber.

Experimental results explain when a bending diameter for an optical fiber increases it will decrease the dispersion and pulse shape will approximate from a Gaussian shape , and the increasing in temperature will increasing  the attenuation in the pulse transfer through the optical fiber .                                                                                                

But when increasing pressure, the dispersion will increases and the pulse shape will be distorted