IMPROVEMENT OF THE PERFORMANCE OF OPTICAL FIBERS
MOHAMMED REYAD SAKR;
Abstract
This thesis is a theoretical study concerning with the improvement of the performance of optical fibers. A single-mode Gaussian profile optical fiber is considered. Its quality of functioning is controlled by the physical properties of the glass of the fiber core, the cladding, and the coating materials. The objective of this study is to select the best physical parameters which result in a high quality performance.
The investigated subjects in this thesis are as follows: (1) Transmission characteristics including:
(a) The minimization of the chromatic dispersion over a broad wavelength band in which the attenuation is low for pure silica. The minimization is obtained at a certain values of the physical parameters of the glass fiber.
(b) The bending loss under the scope of the minimum chromatic dispersion parameters.
These parameters have proved to give small bending loss.
(2) The microbending loss and the stresses induced by both the temperature variation and the axial strain in a multi-coated coating of the optical fiber. Optical fibers with two up to six coatings are considered. A recurrence relation is obtained for the lateral pressure on the glass fiber, from which the microbending loss and thermal stresses are calculated. It is found that the microbending loss can be minimized by increasing the number of coatings.
The investigated subjects in this thesis are as follows: (1) Transmission characteristics including:
(a) The minimization of the chromatic dispersion over a broad wavelength band in which the attenuation is low for pure silica. The minimization is obtained at a certain values of the physical parameters of the glass fiber.
(b) The bending loss under the scope of the minimum chromatic dispersion parameters.
These parameters have proved to give small bending loss.
(2) The microbending loss and the stresses induced by both the temperature variation and the axial strain in a multi-coated coating of the optical fiber. Optical fibers with two up to six coatings are considered. A recurrence relation is obtained for the lateral pressure on the glass fiber, from which the microbending loss and thermal stresses are calculated. It is found that the microbending loss can be minimized by increasing the number of coatings.
Other data
| Title | IMPROVEMENT OF THE PERFORMANCE OF OPTICAL FIBERS | Other Titles | تحسين أداء الألياف البصرية | Authors | MOHAMMED REYAD SAKR | Issue Date | 1996 |
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